Hi i have a 91 RS with a 305 tbi and i wann upgrade to a 350 that i have bought rebuild it is from a 89 iroc it has the wiring and everything. Would it be easy to put the tpi and wiring harness from a 89 into a 91 or would i need another one. If its hard i also have Holley 600cfm carb and a edelbrock intake to put in it if its to much work for the tpi swap. Can any of you guys tell which would be easiest or if its possible to put that tpi into my car.