Hello, I have a GM TBI system that I bought some years ago from a guy named John W who owned Custom EFI and I think he was outta the South somewhere around the Carolina's. I can't find the install manual and after installing a new Centec wiring harness I'm having trouble getting the TBI to power up. Anyone have a schematic I can use? Two or three wires is all I need to connect but somethings not right now. Any help would be appreciated.