I have a 91 with 305 TBI,also have a 89 IROC 350TPI donor car,what problems am I gonna run into DASH wiring wise swapping in TPI,should I plan on putting the whole 89 dash in the 91 ?I'm aware of the speedo difference ,I figure I'll use the 91 trans with the 89 motor
Any warnings/suggestions would be appreciated
Thanks
Steve

 

You mention you know of the difference with the speedo problem. I have just had a swap done for me in my 1990 camaro rs "305tbi" from a 1991 pontiac formula "350tpi" and had the complete drivetrain switched out including the computer and all electrical except the speedo cluster and I am unable to get my speedo to work. Have you run into this before? Would it be that the speedo had to be switched to the one that corresponded with the 305/350tpi engines "145mph" as opposed to the one that was just for the 305 tbi engine"110/115mph"?