I have a 93 LT1 Formula and I unhooked the wiring harness but I don't know which injector plug goes to which injectors. My 96 LT1 has the numbers of the cylinders on the side but these are much older on the 93 and say nothing. Please help, it would be nice. Thanks

 

The plugs that go into the injectors have tiny numbers inprinted on them.

 

Well, 93's use batch-fire injection, meaning it activates the injectors by each cylinder bank. 94 and later used sequential-fire injection, meaning the injectors activate one cylinder at a time. Anyways, to answer your question, so long as you keep the same 4 injector plugs on their appropriate sides (I think you'd have to literally flip the harness upside down in order to reverse it) you can plug them in any order. One of the benefits to owning a 93...

 

thanks man