Killshot 2 Pro
4-bbl TBI system with an external ECU for classic engines up to 650 hp
Killshot 2 Pro Master Kits (Gold)
Must select 5" Handheld variant to get the free gifts
3-Year Warranty
30-Day Returns
Secure Payment
Kit Types Explained
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Save 5% automatically when you purchase a Fuel Kit, Top End Kit, or Master Kit!
- 1. Standalone Kits
Perfect if you already have a high pressure fuel system (43 PSI+) and want to use your stock ignition or if you already have an aftermarket distributor. (Note that a distributor must be locked out to run timing control.)
- Includes the following:
- Throttle body
- ECU
- Handheld or Bluetooth Module
- Full Harness
- Sensors
- Accessories
- 2. Fuel Kits
Perfect if you want to use your stock ignition or if you already have an aftermarket distributor. (Note that a distributor must be locked out to run timing control.)
- Includes the following:
- A complete Standalone Kit
- A Fuel Delivery System of your choosing
- 3. Top End Kits
Perfect if you already have a high pressure fuel system (43 PSI+) and want to run timing control.
- Includes the following:
- A complete Standalone Kit
- A Magnetic Distributor of your choosing
- An AC2008 Ignition Coil
- 4. Master Kits
These include everything you need to go from carb to EFI and run timing control.
- Includes the following:
- A complete Standalone Kit
- A Fuel Delivery System of your choosing
- A Magnetic Distributor of your choosing
- An AC2008 Ignition Coil
What it is: The all-in-one Gold Killshot 2 Pro package with fuel delivery and ignition hardware combined into one kit to work together from day one. This is the perfect all-in-one solution to convert from a carburetor to EFI.
Includes
-
Everything in the Killshot 2 Pro Fuel Kit.
-
Everything in the Killshot 2 Pro Top End Kit.
Choose one fuel delivery option
-
Aces 255 In-line Fuel System.
-
Tight Fit In-Tank Pump Module.
-
Command Center 2 Surge Tank.
-
Tank Conversion Pump Module with Internal Regulator.
Ideal for
Street and track builds that need pro-level tuning, boost support, and a complete parts list that installs cleanly and supports up to 650 hp with a single unit.
Product Info
Overview
What it is: The all-in-one Gold Killshot 2 Pro package with fuel delivery and ignition hardware combined into one kit to work together from day one. This is the perfect all-in-one solution to convert from a carburetor to EFI.
Includes
-
Everything in the Killshot 2 Pro Fuel Kit.
-
Everything in the Killshot 2 Pro Top End Kit.
Choose one fuel delivery option
-
Aces 255 In-line Fuel System.
-
Tight Fit In-Tank Pump Module.
-
Command Center 2 Surge Tank.
-
Tank Conversion Pump Module with Internal Regulator.
Ideal for
Street and track builds that need pro-level tuning, boost support, and a complete parts list that installs cleanly and supports up to 650 hp with a single unit.
Specs
Killshot 2 Pro Master Kits (Gold) Specifications
| Specification | Value |
|---|---|
| Series | Killshot 2 |
| Application | Classic small/big block engines under 650 HP (NA) or 550 HP (boosted). |
| Why you would buy one over the other | Includes all the features of the Killshot 1, plus: Lower profile design for more universal air cleaner fitment, built-in fuel pressure sensor, progressive linkage, B60 Chip, expanded VE tables (31x31), expanded spark tables (31x31), Boost Control*, fuel level input, additional I/O wires for future expansion. |
| Accelerometer Support | No |
| Accepts Firmware Updates | Yes |
| Advanced Tuning Software Compatible | Yes |
| Air Cleaner Diameter | 5-1/8" |
| Boost Compatible | Yes |
| Boost Control | Yes* (via firmware update) |
| CAN-BUS Support | Yes |
| CFM | 1,000 |
| Chip Set | B60 Series |
| Coil Per Cylinder Ignition Support | No |
| Data Cable Included | Yes |
| Datalogging Support | Yes |
| Distributor Compatibility | MAG, Hall-Effect, Coil-, CDI |
| Dry Nitrous Compatibility | No |
| E85 Compatible | Yes, with proper fuel tuning (not out of the box) |
| ECU Location | External |
| EFI Type | Throttle Body Injection |
| EGT Support | Yes |
| Emission Code | 3 |
| Fan Control | Yes |
| Flange Size | 4150 / Square-bore |
| Forced Induction Compatibility | Yes |
| Fuel Injectors Included | Yes, built in |
| Fuel Level Input | Yes |
| Fuel/Oil Pressure Input | Yes |
| Grade Type | Automotive |
| Handheld Included | Yes |
| Idle Air Control Motor Included | Built-in |
| Ignition Timing Control | Yes |
| Injector Quantity | 4 |
| Injector Size | 100 lb/hr |
| Inlet/Outlet Size | -6 AN |
| MAP Sensor Included | Yes |
| MAP Sensor Rating | 3 Bar |
| Material | Cast Aluminum (throttle body) |
| Max HP Support | 650 HP (single quad NA) |
| Mounting Hardware Included | Yes |
| Multi-Stage Nitrous Control | No |
| Nitrous Retard | Yes |
| Ported Vacuum | Yes |
| Progressive Linkage | Yes |
| Progressive Nitrous Control | No |
| Recommended Fuel PSI Range | 43–58 PSI |
| Release Date | Spring 2025 |
| Self-Learning | Yes |
| Throttle Body Height | 3-5/16" |
| Throttle Position Sensor Included | Yes, built in |
| Transmission Control | Not built in, but compatible with Aces Trans Control Modules |
| WBO2 Sensor | 1 |
| Wet Nitrous Control | Yes, but non-progressive |
Resource Documents
For additional manuals, diagrams, measurements, and more, check out our documents page in our Resource Center by clicking here.
What's in the box?
What it is: The all-in-one Gold Killshot 2 Pro package with fuel delivery and ignition hardware combined into one kit to work together from day one. This is the perfect all-in-one solution to convert from a carburetor to EFI.
Includes
-
Everything in the Killshot 2 Pro Fuel Kit.
-
Everything in the Killshot 2 Pro Top End Kit.
Choose one fuel delivery option
-
Aces 255 In-line Fuel System.
-
Tight Fit In-Tank Pump Module.
-
Command Center 2 Surge Tank.
-
Tank Conversion Pump Module with Internal Regulator.
Ideal for
Street and track builds that need pro-level tuning, boost support, and a complete parts list that installs cleanly and supports up to 650 hp with a single unit.
Killshot 2 Pro Master Kits (Gold) Specifications
| Specification | Value |
|---|---|
| Series | Killshot 2 |
| Application | Classic small/big block engines under 650 HP (NA) or 550 HP (boosted). |
| Why you would buy one over the other | Includes all the features of the Killshot 1, plus: Lower profile design for more universal air cleaner fitment, built-in fuel pressure sensor, progressive linkage, B60 Chip, expanded VE tables (31x31), expanded spark tables (31x31), Boost Control*, fuel level input, additional I/O wires for future expansion. |
| Accelerometer Support | No |
| Accepts Firmware Updates | Yes |
| Advanced Tuning Software Compatible | Yes |
| Air Cleaner Diameter | 5-1/8" |
| Boost Compatible | Yes |
| Boost Control | Yes* (via firmware update) |
| CAN-BUS Support | Yes |
| CFM | 1,000 |
| Chip Set | B60 Series |
| Coil Per Cylinder Ignition Support | No |
| Data Cable Included | Yes |
| Datalogging Support | Yes |
| Distributor Compatibility | MAG, Hall-Effect, Coil-, CDI |
| Dry Nitrous Compatibility | No |
| E85 Compatible | Yes, with proper fuel tuning (not out of the box) |
| ECU Location | External |
| EFI Type | Throttle Body Injection |
| EGT Support | Yes |
| Emission Code | 3 |
| Fan Control | Yes |
| Flange Size | 4150 / Square-bore |
| Forced Induction Compatibility | Yes |
| Fuel Injectors Included | Yes, built in |
| Fuel Level Input | Yes |
| Fuel/Oil Pressure Input | Yes |
| Grade Type | Automotive |
| Handheld Included | Yes |
| Idle Air Control Motor Included | Built-in |
| Ignition Timing Control | Yes |
| Injector Quantity | 4 |
| Injector Size | 100 lb/hr |
| Inlet/Outlet Size | -6 AN |
| MAP Sensor Included | Yes |
| MAP Sensor Rating | 3 Bar |
| Material | Cast Aluminum (throttle body) |
| Max HP Support | 650 HP (single quad NA) |
| Mounting Hardware Included | Yes |
| Multi-Stage Nitrous Control | No |
| Nitrous Retard | Yes |
| Ported Vacuum | Yes |
| Progressive Linkage | Yes |
| Progressive Nitrous Control | No |
| Recommended Fuel PSI Range | 43–58 PSI |
| Release Date | Spring 2025 |
| Self-Learning | Yes |
| Throttle Body Height | 3-5/16" |
| Throttle Position Sensor Included | Yes, built in |
| Transmission Control | Not built in, but compatible with Aces Trans Control Modules |
| WBO2 Sensor | 1 |
| Wet Nitrous Control | Yes, but non-progressive |
For additional manuals, diagrams, measurements, and more, check out our documents page in our Resource Center by clicking here.
Hold your horses
Boost it, baby.
Twice the Killshot. Twice the resolution.
If the shoe (throttle body) fits
Know with the flow
Master Kit Feature
(Fuel) Pump Up the Jam
Each Master Kit will come with a fuel system of your choosing. You can scroll down to read more about the available options below.
255 In-line Fuel System
A frame-mounted in-line pump with all of the necessary fittings and hose.
Command Center 2
A surge tank system that allows you to keep your mechanical pump in place. A better option for classic trucks or other vehicles where the tank is hard to access.
Tight-fit In Tank Pump Module
An in-tank fuel pump module available with or without PTFE hose.
Requires a return line to the tank.
Tank Conversion Fuel Pump Module
An in-tank fuel pump module with an internal regulator. Ideal for fuel cells.
Does not require a return line to the tank.
Master Kit Feature
Distributors for Days
Each Master Kit will also come with a Distributor of your choosing and an ignition coil to allow you to run timing control.
Magnetic Pickup Distributor
With over 15 options to choose from, our line of Black Jack Pro Magnetic Pickup Distributors lets you run your EFI with mechanical advance or lock it out to allow the ECU to control timing.
Ignition Coil
The high-output magnet in the Black Jack Pro Ignition Coil creates 50,000 volts, or about 70% more spark energy over most stock-style applications, giving you a significantly hotter and larger spark for more complete combustion. This helps create more horsepower and torque, providing smooth acceleration throughout the entire RPM band.
How do I set up and program my system?
Interface Options
Our EFI systems are self-learning for most stock-to-mild engine builds. You’ll use one of the included interface modules (depending on the option selected at purchase) to complete the initial setup and make adjustments on the fly. The startup wizard will prompt you with 6–12 setup questions, after which the self-learn feature takes over.
Additional fine-tuning may be required later, depending on your specific build.
5" Handheld (3rd Gen)
- Capacitive touch screen
- 64-bit processor
- 1280x720 resolution
- Cable connection via main harness
8" Handheld (1st Gen)
- Capacitive touch screen
- 64-bit processor
- 1280x800 resolution
- Wifi chip for software updates via the internet*
- Cable connection via main harness
*Currently disabled in this version of the software but will be enabled in a future version
Most common questions
Quick answers to our most common queries for this product.
The Killshot 2 Pro Master Kits (Gold) are designed to work with any classic 4, 6, or 8 cylinder engine that is under 650 hp, uses a 4150 style flange, and has a fuel system rated for EFI (43 PSI).
The self learn will work for most stock-mild builds, while some mild and more advanced builds may require manual tuning.
The Killshot 2 Pro Master Kits (Gold) are designed to work with most stock or aftermarket ignition components. They will work with most tachometers and are compatible with Dakota Digital dashes using their Aces BIM Module (BIM-EFI-1).
Self-tuning is a common term used among aftermarket EFI companies, but we prefer the term "self-learning" as that is more accurate, even for our competitors who advertise "self-tuning."
Our systems are designed to self-learn the fuel MAPs and work best for stock-mild builds. Some mild builds and anything beyond that would require manual tuning, of which the system is fully capable. Additional features like nitrous and boost are also considered beyond stock and require manual adjustments to enable and configure these kinds of features.
Yes! You can make many changes using the Bluetooth or handheld interface, and we also offer a free PC app for more advanced tuning.
The Killshot 2 Pro Master Kits (Gold) can work with standard stock or aftermarket ignition components, but if you want to run timing control, it will need either a magnetic pickup distributor that has been locked out or a Hall Effect distributor. You will also need to make sure that your fuel delivery system can support 43-58 PSI. Whether or not you need a return line will depend on your fuel delivery system and if the regulator is inside or outside the tank. Whether or not you need to replace your tank will depend on which fuel delivery system you choose. We offer complete Master Kits for each EFI system that come with new ignition components and a fuel delivery system. You can visit the Killshot 2 Pro Master Kits page here.
Yes to both! The Killshot 2 Pro Master Kits (Gold) are compatible with both blow-through, draw-through, and nitrous applications and are also compatible with E85 Fuels. The Killshot 2 Pro Master Kits (Gold) ' MAP sensor can be scaled for up to 26 lbs of boost and can be set to retard timing.
Note that for boost, the system is compatible, but cannot control the boost. You will need to use a separate controller for things such as wastegate control or solenoid activation. Use of these features will require manual tuning.
just upgraded from Killshot Gen1 to Killshot Pro 2 for couple reasons. 1 Being needed to have drop down air cleaner for my 454 big block stuffed in a 69 Camaro. 2. because I have total faith in this product.
Still using my 7inch display just set it to Gen2 and it works great
As always was a breeze to install and Love the PDM was a great idea!
Set up for auto tune fired right up first try. Drove neighborhood for 15 minutes then got out on faster speeds 45/55mph for a while hummed along fine. Cruised back home shut her down fired right back up with the turn of the key next day drove to a car show about 20+ mile one way cruised around 70ish :) sat at show for a few hours then cruised home worked great.
Went out this morning fired right up after a few cranks!!
Thanks Again Very happy with the product and your service also.
Didn't ship the complete order, I've reached out to customer service. Had on response that it would be looked into. That was over a week ago. I've sent several emails since with no response....if this is the support I can expect, I'm considering returning the whole kit for refund.
Aces killshot 4 bbl efi. System arrived promptly, quality appears excellent, even packaging was excellent. Tech support was great very courteous and professional, overall I am extremely pleased with the purchase and experience. Thank you very much
Installed it on our 69 mustang Mach 1, Super good quality very impressed. liked it so much I bought a blackjack distributor for the 351w, 2 high rollers and a fusion kit to go on my 67 mustang coupe with factory 390. If I Had more cars that needed them I'd buy more. Highly recommend.
Finally got to try to start my 351w sleeper build. I could not get it to start using the "race cam" in the wizard. I have a edelbrock 7182 cam equivalent (.498/.520 224/234 .050 and only 10" vacuum at 1000rpm. Had to put it to stock cam to run. My msd distributor gear height was off and caused the distributor to move 22 deg off. Couldn't figure it out until I seen all he plug wires move and engine sputter and die.
Waiting on New distributor gear and we shall see how she runs. Building my timing table now so she should run great i hope!
I think the Killshot TBI is great. It is simple to install and even had a fuel pump relay and fuse. It looks great and setup was simple. There are downsides to it. EFI is loud and this thing is especially loud. The injectors make a clicking racket that is loud enough to hear inside my truck. (1976 Dodge D100, 5.9 magnum, carb intake, tube headers, 5 speed, 3" single exhaust) Next big mod: sound insulation on the firewall!
Super clean and easy to work with it’s for sure a total upgrade
The best kit I ever bought. The instructions are very clear to read. And for the price, it’s the best. I highly recommend.
Looks exactly as in the pictures! Its well built! Delivery was fast! No damage to the contents inside! All the 8 boxes were packaged properly. Now Im just waiting to test this product in my vehicle. Overall great product so far!
Wasnt on the vehicle 3 weeks and already having issues with ecu. Customer service is horrible, just giving the run around.
Great product cant wait to install everything looks well made
Just what I wanted thanks
Killshot 2 Pro “Back to life Kit” plus in Tank Pump and Evil Energy Fuel Cell swap
1968 Chevelle 383 Stroker
Build quality seems solid. Takes a lot longer to install when youre solo, so plan on a weekend project if its your first EFI install. Pretty impressed with the overall performance and simplicity of the wiring and PDM. However, my kit is missing the the bluetooth module.
Would have been 5 stars if the instructions mentioned the PDM wiring… maybe they do but my kit was missing instructions and had to download from their website.
All things are possible through Youtube and ChatGPT.
can i use my stock distributor. it has control module in it. its on a 94 350
Great kit worked great replacing my TBI on my 1988 Silverado
Everything was packaged well and arrived early.....very impressed with aces and can't wait until spring when I can install my unit and try it out.
Its what I wanted thanks
Working well so far!
Great packaging, all parts look awesome. I won’t be installing for quite some time, just wanted to get the sale kit while it was there.
Very well packaged! All parts are present and look to be of great quality and design. It will be a while before I install it as my project isn’t ready for it, but I have watched countless YouTube videos n the kit that I doubt I will have any issues.
I had parts missing from my order.i emailed customer service on 12/4 and the issue is still not resolved on 12/16. I guess I should have bought another brand.
I’ve been keeping an eye on these systems for a while, when Black Friday deals rolled around I decided to pick one up. This is my first time messing with any of these types of systems so I had no idea what to expect as far as ease of install and first crank. I bought this system for a BBC 454 large cam, AFR heads 10.5 to 1 compression, and dual plan intake making just under 600hp. I was really tired of the cold starts on the carb with the gas needing constant feathering until it was fully warmed up and a few other issues I wanted to solve. So, install actually went pretty easy. Aces has a lot of documentation on their website that you can review as well as videos to watch. I recommend reading and researching these before install if this is your first time. Complete install of fuel system and injection system took about 5 hours total. No major hiccups or issues. After install flushed the lines a few times and connected and primed the system to check for leaks.I have the 7” handheld system so I did the initial start wizard and zeroed the TPS and it cranked right up first try. It had a rough idle for the first minute but, once the O2 sensor came online it smoothed out. After that I adjusted the throttle body , did a rezero on the TPS, pulled some fuel out of idle and it cranked right up no issues held idle did a quick drive drives decent for no tune. I plan to work on the tune some this coming week. Overall I am very satisfied thus far with the system. It’s as easy as they make it out to be and seems it will fix all the issues I was having with the carb. As long as it has longevity which time will only tell I fully recommend the system . Like I say I do recommend reading all instructions that come with the system and going online to review all the documentation and videos there if this is all new to you. Their YouTube videos help explain a lot much better.
Looks great. I can't wait to install it.
Like the unit and am upgrading to Killshot II.
I want a refund please. How do I go about it
Every thing looks really nice haven’t got to try it yet I’m thinking on giving to my friend for his truck and buy the multi Port unit
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