The Edelbrock Ignition/IAC Harness is a supplemental kit designed specifically for those who have purchased or are planning to purchase a Pro-Flo 4 EFI System for the Chevrolet Gen IV 58X LS engine with either the 4150-style or Pro-Flo XT intake manifold. The Harness Kit is required and must be ordered separately due to the two different crank trigger designs of the Gen IV (58X reluctor) LS engines. The Gen IV 58X LS engine is easily identified by the crank sensor located at the rear of the block behind the starter, and the camshaft sensor located at the rear of the block on top.
The Edelbrock Ignition/IAC Harness connects to the Pro-Flo 4 LS EFI Kit's main harness labeled 'Coils/IAC' and provides connections for the Coil Pack harness, Crank Sensor, Cam Sensor, and Stepper IAC Motor. This harness is a supplemental kit that is required when installing a Pro-Flo 4 LS EFI Kit on a Chevy Gen IV 58X LS engine.
Note: Not-compatible with Gen III 24X LS engines must buy this PN: #EDL-35713
