Doing a 5.3/4l60e swap on a 92 firebird, I purchased the racetronix kit for a thirdgen. The kit came with a racetronix 255 fuel pump and a separate relay that's mounted in the back and plugs into the factory bulkhead behind the rear seat going to a black, purple and gray wire. The 5.3/4l60e is on a stand alone harness and has relays for the ignition and fans. Do I need to wire the factory fuel pump relay back in or how do I go about getting the rear fuel pump relay for the fuel pump to activate with the key on?

 

Looks like you asked this question in multiple places. Answered here,

https://www.thirdgen.org/forums/ltx-...ml#post6584225