I am currently debating on replacing my stock tbi 350 in my 1991 silverado w/ a carbuerated 454. I have a built 700R4 but I am poorly informed about the connections between my tranny, computer, and engine. Will replacing the fuel injected 350 w/ the carbuerated 454 screw with my computer/gauges etc? Or will it be an easy swap w/ little to do but remove some excess wiring harness and move some engine mounts? Any help would be greatly appreciated.