Wild Card Sequential Multi-Port EFI System

Take your classic V8 engine into the modern era with Aces EFI’s Wild Card Sequential Multi-Port EFI System—a fully customizable, true sequential injection system designed for most classic 8-cylinder engines. Unlike traditional TBI setups or competitor systems that use bank-to-bank injection, Wild Card delivers precise fuel metering at each cylinder for superior throttle response, better fuel distribution, and increased power across the RPM range.

Total Customization for Your Build

Whether you’re running a Small Block, SBF, or even a Mopar (coming soon!), Wild Card’s customizable firing order setup in the start wizard ensures compatibility with a wide range of classic 8-cylinder engines. This system requires a 7+1 timing setup, ensuring accurate ignition control.

More Than Just EFI – A System Built for Performance

Wild Card is available in three configurations to match your build and power goals:

• Standalone System – Includes ECU, wiring harness, handheld controller, and basic sensors to get you running.
• Top-End Kits – Adds an aluminum intake manifold (black or raw finish), Gambler Series distributor, ignition coil, injectors, throttle body, and fuel rails for a complete fuel and ignition upgrade.
• Master Kits – Includes everything from the Top-End Kit plus a fuel delivery system of your choice for a full EFI conversion.

MP-EFI vs. TBI: Why Multi-Port is Superior

Throttle Body Injection (TBI) may be easy, but it can't compete with the precision of Multi-Port EFI (MP-EFI). TBI sprays fuel above the throttle blades, leading to uneven fuel distribution and weaker throttle response. In contrast, Wild Card’s true sequential MP-EFI meters fuel cylinder-by-cylinder, optimizing fuel economy, power, and drivability.

Built for Your Needs – Stock to High Performance

Power Levels: Available in 500 HP and 800 HP configurations.

Self-Learning: Stock to mild builds benefit from self-learning, while more aggressive setups can be manually tuned with our full tuning suite.

Injector Options: Choose between EV1 or EV6 style injector harnesses for compatibility with your fuel system.

Throttle Body Choices:

• 4-bbl throttle body includes a 1 BAR MAP sensor (for naturally aspirated applications).
• Single-blade throttle bodies come with a 2.6 BAR MAP sensor (for boosted applications).

Dual Wideband O2 Sensors: Ensures proper fueling across both banks for ultimate performance and efficiency.

Manifold Fitment: Designed for OEM block and head configurations (may not fit all aftermarket heads).

From daily drivers to track beasts, the Aces EFI Wild Card is the modern solution for your classic V8, offering unmatched precision, tunability, and performance. Upgrade to a smarter fuel injection system today and experience the difference of true sequential Multi-Port EFI!

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 (when using Aces’ coil and distributor).
• 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).
• Free laptop software available for pro applications.
• Compatible with Aces’ handhelds, dashes, CAN modules, and TCMs.
• Bosch 4.9 WBO2 sensor.
• Works with CDI Ignition (Aces High Roller CDI box or MSD style).

ACES Fuel Injection’s Blackjack Pro Ignition Coil

Aces Fuel Injection’s Blackjack Pro Ignition Coil is the ignition upgrade to complete your EFI conversion. This extremely powerful ignition coil’s unique design better dissipates heat, and its square shape allows for easy mounting on a firewall or fender. The high-output magnet 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.

Aces EFI’s single bore throttle bodies are designed to fit most GM LS intake manifolds, including ACES’ Low-Ram LS Intake Manifold and fabricated aluminum manifolds. These throttle bodies are fully CNC-machined, and come complete with a high-quality  Throttle Position Sensor (TPS) and Idle Air Control (IAC) for the DBC versions. We also have a DBW versions that is compatible with most popular factory GM pedals.  Aces’ Single-Bore Throttle Bodies are available in 92mm and 102mm versions, giving you the maximum amount of air flow regardless of the application.

Whether you are building a budget beater or a boosted race car, Aces EFI’s single bore billet throttle bodies have the technology and advanced features you need, in an easy-to-install package so you can take your ride to the next level!

Aces EFI’s Billet Single Blade Throttle Body Benefits

Billet aluminum construction

92mm throttle opening

Includes integrated Throttle Position Sensor and IAC (DBC version)

DBC and DBW versions available

Fully CNC-machined

Black anodized for long-lasting great looks

Killshot ECU
This ECU is the service replacement for all ACES Killshot EFI systems, including Killshot Classic and is compatible with all ACES handhelds, dashes, CAN modules, and TCMs. The Killshot ECU features 32-bit software (OEM standard) that manages input/output signals, voltage, and RPM faster and more consistently than competitors.

Royal Flush ECU
This ECU is the service replacement for all ACES Royal Flush EFI/CDI systems and is compatible with all ACES handhelds, dashes, CAN modules, and TCMs. The Royal Flush ECU features 32-bit software (OEM standard) that manages input/output signals, voltage, and RPM faster and more consistently than competitors, and features an integrated CDI ignition system.

Deuces Wild ECU
This ECU is the service replacement for all ACES Deuces Wild EFI systems and is compatible with all ACES handhelds, dashes, CAN modules, and TCMs. The Deuces Wild ECU features 32-bit software (OEM standard) that manages input/output signals, voltage, and RPM faster and more consistently than competitors.

Wild Card ECU
This ECU is the service replacement for all ACES Wild Card EFI systems and is compatible with all ACES handhelds, dashes, CAN modules, and TCMs. The Wild Card ECU features 32-bit software (OEM standard) that manages input/output signals, voltage, and RPM faster and more consistently than competitors.

The Joker ECU
This ECU is the service replacement for all ACES The Joker EFI/CDI systems, and is compatible with all ACES handhelds, dashes, CAN modules, and TCMs. The Joker ECU features 32-bit software (OEM standard) that manages input/output signals, voltage, and RPM faster and more consistently than competitors, and features an integrated CDI ignition system.

ACES EFI designs and builds its systems to be easy to install without the need for custom tuning. While this works for the average enthusiast, there are times you simply need more access. For this, ACES offers its Advanced Tuning Software.

ACES Advanced Tuning Software is available as a free download, but to connect your laptop to the ECU, the ACES CAN Cable is required. This cable connects to the wiring harness in place of the handheld controller, linking your EFI system to your PC Laptop. Once this connection is made, the full suite of advance tuning features is available.