Any TPI swappers in here?

[Jim85IROC]

Start with a TPI setup from a newer car, or at least convert to a newer style ECM. I see that Russell already touched upon the 85's limitations, but I wanted to go a bit further. The 85 ECM is primitive and difficult to modify for a different motor, like a 350. I ran into all kinds of problems getting my 85 to run well when I put my 350 in. You can't use a PROM from an 85 Corvette in a Camaro ECM because there are some differences. I found that my car ran far better when I converted to the "165" ECM that was used from 86-89. This requires only minor changes, and all of your original sensors will work. Best of all, there is a tremendous amount of support out there for custom PROMS for this computer.