ACES Fuel Injection AS2212CB2-MK-2027-4004 Features:

Killshot Fusion Master Kits include a Standalone Killshot Fusion EFI system + a Magnetic Pickup Distributor (and coil) of your choosing + a Fuel Delivery System of your choosing. The Killshot Fusion Master Kits include everything you need to go from carb to EFI.Engineered Precision. Integrated Simplicity. Real-World Durability. The Killshot Fusion is the next evolution in throttle body EFI systems. Building upon the success of the original Killshot, the Fusion takes everything users loved, robust hardware, accurate fuel delivery, and ease of tuning, and reimagines it with a fully integrated design that eliminates clutter, simplifies installation, and dramatically boosts reliability.

In a world where many EFI manufacturers rushed to integrate ECUs onto the throttle body and paid the price in failures, Aces EFI took a different path: more time, more engineering, and more testing. The result is Killshot Fusion, a true all-in-one TBI system that thrives where others fail.

Built from the Core Up – Smart, Strong, Stable: At the heart of the Killshot Fusion is a high-performance 32-bit automotive-grade microcontroller based on the PowerPC e200z0h core. This platform enables lightning-fast input/output processing, superior sensor management, and high-resolution fuel and spark control. Combined with Aces’ proprietary software and a proven B50 control chip, it delivers performance you can trust in any application, from street cruising to competitive racing.

Fusion also includes advanced ECC memory protection, a Memory Protection Unit (MPU), and a 4-layer PCB with a dedicated power plane. This design significantly reduces voltage fluctuations and impedance, ensuring system stability and durability, even in extreme environments.

Re-Engineered for the Harshest Realities: Many EFI systems fail because they ignore the reality of engine bay conditions, heat, vibration, electromagnetic interference (EMI), and moisture. The Killshot Fusion addresses each of these with purpose-built solutions

Rapid Self-Learning: The ECU quickly adapts to your engine's fueling needsno laptop required during setup.Anti-Interference Control: Predictive shielding algorithms mitigate signal disruptions before they occur.Whether you’re adjusting idle quality or optimizing for boost, Fusion’s software is tuned to perform.

Performance Hardware – Loaded and Ready (4) 100 lb/hr Injectors – Supports up to 650 horsepower

Integrated Coil Driver – For direct ignition control

Step Retard – Built-in timing control for nitrous applications

Boost-Ready – 3-bar TMAP sensor included for high-performance turbo or supercharged setups

Built-in Sensors – MAP, TPS, IAT, and 4.9 Wideband O2 included

Dual Fan Control – Optimize cooling strategy

5” Full-Color Touchscreen Handheld – Includes GPS speedometer, monitoring, and intuitive setup wizard

Advanced Tuning Software – Free laptop-based tuning with pro-level tables and live data

Fully Compatible – Works with Aces CAN accessories, digital dashes, and transmission controllers

Why Killshot Fusion? Why Aces EFI? While others shipped flawed designs to meet a trend, Aces EFI held the linerefining, validating, and testing until we had a product worthy of our name. The Killshot Fusion is the culmination of five years of ECU and TBI development, engineered specifically for real-world performance and long-term reliability.From weekend warriors to serious tuners, Killshot Fusion offers the confidence of clean installation, the control of pro-level tuning, and the backbone of proven engineering.If you’re ready for a throttle body EFI system that does more than look the part, this is it.

• Accelerometer Support: No
• Air Cleaner Diameter: 5
• Air Inlet Location: Center top
• Basic Operating RPM Range: Up to 8,000 RPM
• Boost Compatible: Yes
• Boost Control: No
• CAN-BUS Support: Yes (Aces)
• Category: Electronic Fuel Injection
• CFM: 1,000
• Coil Per Cylinder Ignition Support: No
• Color: Black
• Gold
• or Polished
• Datalogging Support: Yes
• Distributor Included: Only in Top End & Master Kits
• Dry Nitrous Compatibility: No
• Dry Nitrous Control: No
• E85 Support: Yes
• EFI Type: Throttle Body Injection (TBI)
• EGT Support: Yes (Aces)
• Emission Code: 3
• Engine: Utilizes a 4150 style flange. Not specific to any one engine.
• Finish: Powder coating for Black or Gold. Polished finish
• Flange Style: 4150
• Forced Induction Support: Yes
• Fuel Filter Included: Only in Fuel Kits & Master Kits.
• Fuel Hose Included: Only in Fuel Kits & Master Kits.
• Fuel Injectors Included: Yes. (4) 100 lb/hr injectors which are built in.
• Fuel Pressure Regulator Included: Only in Fuel Kits & Master Kits.
• Fuel PSI Required: 42-48 PSI. 60 PSI Max.
• Fuel Pump Included: Only in Fuel Kits & Master Kits.
• Fuel Rail(s) Included: Not applicable to TBI style systems.
• Fuel System Type: Depends on selection and only in Fuel Kits & Master Kits.
• Gasket Or Seal Included: Yes
• Gasket Type: Fiber
• Grade Type: Performance
• Handheld Included: Yes
• except in Bluetooth Module only variants
• Handheld MCU Architecture: 64-bit
• Idle Air Control Motor Included: Yes
• built-in.
• Ignition Timing Control: Yes
• Ignition Compatibility: Most stock
• CDI
• magnetic
• hall effect
• or points style distributor.
• Individual Cylinder Fuel Corrections: No
• Injector Connector: EV1 (internal)
• Injector Quantity: 4
• Injector Size: 100 lb/hr
• Intake Manifold Included: No
• Knock Retard Support: No
• MAP Sensor: 3 Bar
• MAP Sensor Included: Yes
• built-in.
• Material: Cast Aluminum (throttle body)
• Maximum Horsepower Supported: 650 Naturally Aspirated
• MCU Architechture: 32-bit ST56 Power PC
• Minimum Horsepower Supported: 150
• Mounting Hardware Included: Yes
• Multi-Stage Nitrous Control: No
• Nitrous Bung(s) Included: No
• Product Type: Electronic Fuel Injection System
• Progressive Nitrous Control: No
• Recommended Use: Stock to Mild applications for best results
• Self-Learning: Yes
• for stock-mild setups
• Sequential Injection: No
• Single Or Dual Plane Type: Compatible with either
• Throttle Body Bore Diameter: 42.8mm
• Throttle Body Height: 3.46
• Throttle Body Included: Yes
• Throttle Position Sensor Included: Yes
• built-in
• Transmission Control: Not included
• WBO2 Sensor: 4.9 Wideband
• WBO2 Sensor Included: Yes
• one.
• User-Tuneable: Yes
• Wet Nitrous Control: No