Killshot Classic 4-bbl EFI System
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Add a PDM to protect your system and clean up your wiring! See details here
Add a PSK for precise pressure monitoring and enhanced performance！ See details here
Technical support
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Power Distribution Module (PDM)
Discover the next evolution in performance and reliability with the Aces Fuel Injection Power Distribution Module (PDM) —your ultimate solution for seamless power management in high-performance EFI systems. The PDM uses IGBT transistors in the place of solid state or electro-mechanical relays which helps to filter bad transient voltage, ultimately providing greater protection for your electronics which are connected to the PDM.
Our PDM is engineered to integrate effortlessly with Aces Fuel Injection Systems, providing robust, efficient power distribution for essential components such as:
- Ignition Systems
- Fuel Pumps
- Cooling Fans
- Auxiliary Accessories
Key Features
- Comprehensive Power Management: Supports ignition, fuel pumps, fans, and more.
- Simplified Wiring: Clearly marked terminals for ease of installation.
- Enhanced Safety: Fuse-protected circuits for optimal performance and reliability.
- Flexibility: Tailored control for auxiliary devices with relay support.
Pressure Sensor Kit
Aces EFI pressure sensor kits utilize top-quality parts for use with EFI systems. Kits include plastic/steel sensors with 1/8" -27 NPT threads and include a -6 AN fuel pressure take-off adapter fitting and 2 sets of 45 push lock hose ends.
Pressure sensors are great for logging oil pressure, fuel pressure, or boost pressure. Display the pressure reading on any Aces Handheld or Dash screen and on your data log files!
EGT CAN Module Kit
High-Performance Tuning with the Aces EGT Module
When it comes to high-performance tuning, accurate Exhaust Gas Temperature (EGT) monitoring is crucial. Whether you're running a naturally aspirated, turbocharged, or nitrous-fed setup, precise temperature data helps you optimize fuel tuning, prevent engine damage, and maximize efficiency. The Aces EGT Module is built for precision, durability, and seamless integration, ensuring you get real-time data to fine-tune your engine like never before.
Why You Need the Aces EGT Module
- Prevent Engine Damage – High exhaust temperatures can lead to pre-detonation, melted pistons, and turbo failures. Monitoring EGTs allows you to adjust fueling and timing before damage occurs.
- Optimize Air/Fuel Ratios – Fine-tune your AFRs based on real-time EGT data for better power, efficiency, and reliability.
- Monitor Cylinder Balancing – Detect uneven fuel distribution or ignition issues to avoid power loss and potential engine stress.
- Essential for Forced Induction & Nitrous Builds – Turbocharged, supercharged, and nitrous-fed engines run hotter. Accurate EGT readings ensure you're not pushing past safe limits.
- Seamless Integration with Aces EFI Systems – Easily expands via CAN connectivity to work with all Aces controllers and displays.
Aces EGT Module Features
- 32-bit RISC-V Core Processor – Ultra-fast processing for real-time data accuracy.
- 480MHz Multi-Stage Pipeline Processor – Handles high-speed temperature changes with precision.
- Hardware Floating-Point Unit (FPU) – Ensures stable, high-speed calculations for consistent performance.
- 16-bit ADC for High-Precision Signal Acquisition – Delivers accurate, reliable temperature readings.
- Supports 2 or 4 EGT Channels – Ideal for both single-bank and dual-bank monitoring setups. (2 channels for two banks, 4 channels for one bank but 4 per exhaust runner)
- Automotive-Grade Type N Thermocouple Sensor – High-durability sensor for extreme conditions.
- Wide Temperature Measurement Range – Capable of reading from -150°C to 1024°C with a rapid 150ms response per channel.
- High-Quality Construction – Silicone fiberglass sleeve, PTFE insulation, and Type N thermocouple conductor ensure long-term durability.
- CAN Expansion Accessory – Easily integrates with all Aces EFI units and display modules.
The Aces EGT Module is an essential tool for serious tuners and racers looking for accurate exhaust temperature data, better tuning capabilities, and enhanced engine protection. Take control of your performance with real-time monitoring and seamless EFI integration.
Have you ever thought about EFI for your project, but were intimidated by the installation process, or worried that the typical 650HP-rated TBI system was too much for your stock or lower-powered engine? ACES has listened and developed the Killshot Classic to better suit those applications.
Key Features:
- Plug and play
- 400 HP
- Easy install
- 5" handheld with GPS speedometer
- Next level RFI / EMI protection
- Base calibrations set in a real world environment
- the most affordable upgrade
The Killshot Classic has (4) 65 lb/hr injectors and is 400 HP capable. Timing control has been removed, allowing an easier installation with your existing distributor. The base calibration installed in the unit is for a mild 350 SBC with an HEI distributor and is easily scaled for other displacements. The TPS, IAC, and TMAP sensors are integrated into the unit for simpler wiring. Dual electric fan controls are retained, as well as an easy-to-use touchscreen, handheld controller for initial setup, tuning, and gauge displays. All of this means that you will spend less time with setup and be able to get your vehicle back on the road quickly!
Simpler installation, improved drivability, and at a lower cost! The Killshot Classic is the best option for your truck, daily driver, or mild cruiser!
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Things to know
& other FAQs.
Emissions Statement
This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.
The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:
1965 and older U.S. manufactured California Certified vehicles
1967 and older U.S. manufactured Federally Certified vehicles
1967 and older Foreign manufactured vehicle
WARNING: It is against the law to install this part on an Emissions Controlled Vehicle
The following vehicles are considered Emissions Controlled Vehicles:
1966 and newer U.S. manufactured California Certified vehicles
1968 and newer U.S. manufactured Federally Certified vehicles
1968 and newer Foreign manufactured vehicle
Marine Applications?
Is it marine or coast guard approved/certified? No. None of our products are.
Do we recommend it? No, since water and engines don't generally mix and warrantying items in these conditions becomes tricky. These are also modified applications that are not 100% what the systems were designed for.
Will it work? Yes, with some modifications for the WBO2 sensor.
Is it E85 compatible?
Yes, you just would need to change some settings first in order for it to work.
Please note that damages to the system caused by the use of E85 or other racing fuels are not covered by our warranty policy. This is because E85 is known to corrode certain types of material over time and our systems were not designed for long-term E85 use.
Will it work with aftermarket or stock gauges?
The system is not generally setup to work with stock gauges which is why we provide the handheld to display all the readings. Aftermarket tachometers will work with the system, and we are working to provide support for other popular aftermarket gauges soon!
What is your warranty policy?
All products have a limited one year warranty against any defects or quality of workmanship from date of purchase.
Our warranty is extended to the original consumer only. This limited warranty is not assignable or otherwise transferable. Customers must provide proof of purchase for warranty claims.
Aces' warranty does not apply to products, which have been:
- Modified or altered from factory condition.
- Subjected to adverse conditions, such as misuse, neglect, accident, improper installation or adjustment, dirt or other contaminants, water, or corrosion.
- Installed in other applications not recommended by Aces Fuel Injection.
What is your refund and return policy?
Aces Fuel Injection is happy to accept returns on orders returned to us inside our policy as long as they are new and unused. In general, items must be returned within 30 days for a full refund or within 60 days for a 10% restocking fee.
For our full Refund & Return Policy, that has all of the fine print, you can access it here.
What kind of tech support do you offer?
Aces offers general support on product setup, installation, troubleshooting, and basic diagnostic help.
While most stock-mild applications do not require tuning, some applications (usually more aggressive cams or boosted applications) may require additonal tuning beyond what the self-learn is capable of. Aces does not offer custom tuning though we can recommend Authorized Aces Tuners who typically charge a fee for their services. Read more about our support services and what to expect here.
People also shop for
Killshot 4-bbl EFI Top End Kits
Aces' Killshot EFI system is one of the most advanced throttle body injection (TBI) systems on the market. The Killshot utilizes four 100 lb/hr fuel injectors, giving the system the capability of supporting up to 650 horsepower. The system includes the throttle body (with integrated fuel injectors, TPS sensor, MAP sensor, IAT sensor, and stepper motors), wiring harness, WBO2 sensor, ECU, and a 5" touchscreen handheld programmer for easy tuning and monitoring of engine data.
The Killshot system fits most 4150-flange 4-barrel intake manifolds and is designed for easy installation and tuning. For stock to mild applications, the calibration wizard and self-learning features mean advanced tuning knowledge or experience is not required. But for more aggressive or performance oriented applications, Aces offers a full tuning software suite and USB data cable for advanced manual tuning.
Aces designed its throttle body systems with the ECU separate from the throttle body. This alleviates any issues with possible damage to the ECU from unwanted engine heat or vibration. This is a common problem with other " all-in-one" style systems on the market.
Whether you are building a budget beater or a boosted racing car, Aces EFI' s Killshot system has the technology and advanced features you need, in an easy-to-install, easy-to-tune package so you can take your ride to the next level!
For timing control, the Killshot requires a magnetic pickup or hall effects distributor and separate ignition coil. We recommend our Black Jack Pro series distributor and ignition coil for a plug & play experience.
Aces EFI Killshot™ TBI System Features
- 32-bit software (OEM standard) that manages input/output signals, voltage, and RPM faster and more consistently than competitors
- 5" full-color touchscreen handheld with built-in GPS speedometer
- Integrated coil driver for ignition timing control
- Simple calibration wizard for initial setup- no laptop tuning required.
- Self-learning fuel table
- Dual fan control
- Step retard for nitrous control
- Boost compatibility (using laptop software)
- Remote-mounted ECU to avoid common heat/vibration-induced hardware failures
- 3-bar TMAP sensor for boost & nitrous compatible (using laptop software)
- Free laptop software available for pro applications
- Compatible with Aces' handhelds, dashes, CAN modules, and TCMs.
- Bosch 4.9 WBO2 sensor
- (4) 100 lb/hr injectors
Each Killshot EFI Top End Kit includes the following:
(1) Your choice of a black gold, or polished Killshot 4-bbl EFI System
(1) Black Jack Pro Series Distributor (choose engine type)
