Holley HP EFI ECU and Harness Kits 550-603 WHEELCYLINDER Application Chevy-Chevelle 64-65 El-Camino 64-65

Application Chevy-Chevelle 64-65 El-Camino 64-65 Chevy

2011-2014 Ram 2500

Intermediate Brake Line For 69 Buick Skylark GS/Chevy Chevelle SS/Oldsmobile Cutlass 442/Pontiac Lemans GTO Hardtop Stainless

2003 - 2005 Chevrolet TrailBlazer EXT

1968-1970 Ford Ranchero

Holley HP EFI ECU and Harness Kits 550-603 WHEELCYLINDER Application Chevy-Chevelle 64-65 El-Camino 64-65HP ECU AND HARNESS LS2 & LS7 Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more. Got a stock LS engine? Simply download a base map and you're on your way. Got a turbocharged, nitrous fed LS engine on water meth? This HP EFI kit can control that too! Features: Simple Installation Plug and Play control of GM LS2 LS3 LS7 engines. Just plug the harness into