It is possible to use the HOlley 700 4bbl as a replacement of a GM 2bbl TBI on my 91 GMC truck? By replacement I mean, swapping the 2bbl for the 4bbl and not having to buy the pro-jection computer and harness ect. Maybe get a custom chip burned for my computer. Any ideas?

 

not really, from what i hear you would need to get an auxilary injector driver as well as do alot of tuning with the ecm to get it to work properly. if the motor is mostly stock or mild, the 2bbl holley replacement unit witht eh 2in bores and a good intake will be more appropriate.

 

not really stock anymore... Going to use a ZZ4 short block with vortec heads, ZZ4 cam with fordged pistons. 375hp and 415ft. I don't think a 2bbl will cut it. will it?