I have install a 92 TBI 454 big block & 4l80e into my 91 suburban. The drivers side firewall plugs are pin'd different and I'm trying to find the 92 diagram so I can make the two work together (re-pin). I have located the complete wiring diagrams for the suburban. The Suburban was a 350 TBI, 4l80 combo factory.

Anyone been down this road before? An advise is appreciated.