TPI Install

[muddpile]

I'm sure there is some info on this site somewhere on this, but the search function won't let me search for TPI because the word is too short. Anyways, I'm thinking about maybe fuel injecting my old 72. It already has HEI, as the motor and all accessories are out of an 84 suburban, but the 4 barrel carb it came with leaves a lot to be desired. I like the idea of fuel injection, and figure that TPI is the way to go for a bolt on installation. I have figured that I need the computer, wiring harness and the intake setup itself to perform this swap, plus an electric fuel pump and fuel return line, but is there anything I am forgetting? I've seen a few trucks on here with that setup and figured I'd ask how exactly it is done. Thanks!