I built my own stand alone harness. I'm running a stripped dash harness and using some of the old fused wires for the ecu/coil/injector circuits.

 

painless wiring. they'll make anything u want.

 

plenty of articles on how to make your own stand alone harness. much cheaper that purchasing a painless setup

 

LS1 Swap | LS1 Conversion | EFI Conversion | Wiring Harness | Fuel Injection Conversion | EFI Kit | Standalone Wiring Harness for LS1 LS2 LS3 LS6 LS7 LS9 LSA LSX Vortec - Performance Systems Integration

 

sorry i havent replied...i bought a plug and play stand alone harness..

 

LS1tech.com has tons of info on these conversions.

PSI performance in NJ makes a killer harness for these set ups. 6 Wires to hook up and done!!!:leghump:

 

already a member on there and i already have a plug an play harness..5 wires to hook up