Holley EFI HP EFI ECU For Complete System - Wideband Oxygen Sensors / Main Wiring Harness / Injector Wiring Harness / Ignition Adapter Harness and Accessories Required RS003C1513 Pro-Flo 4 EFI systems are

Pro-Flo 4 EFI systems are the best value for your dollar

3-Pump and 6-Pump refers to the amount of pumps of the handle to lift the tires off the ground of a typical stock car

Will not fit 1988 and later models

The Simpson Pro-Fit Base Layers are our most comfortable and best fitting base layers

Holley EFI HP EFI ECU For Complete System - Wideband Oxygen Sensors / Main Wiring Harness / Injector Wiring Harness / Ignition Adapter Harness and Accessories Required RS003C1513 Pro-Flo 4 EFI systems areHolley HP EFI ECU 554 113 For Complete System Wideband Oxygen Sensors Main Wiring Harness Injector Wiring Harness Ignition Adapter Harness and Accessories Required Multiple Staged Injector Strategies 12 Channel DIS Outputs Capable Of Directly Driving Smart Ignition Coils Integrated Electronic Transmission Controls Works w NTK Or Bosch Sensors Can Control 2 Drive By Wire Throttle Bodies 4 Stage Progressive Nitrous Control Unlock your Engines Potential