okay i read the sticky thread on swaping engines but it didnt say alot about wiring differances between engines so i am wondering if i can use my 2.8 mpfi harness on my 350 tpi and just get the ecm reprogrammed because the guy who owned the 350 before was terrible at wiring when he put the engine into his bonneville so he put the ecm under the hood without bolting it down, left fuse boxes hanging, and shortened wires so they didnt hang to the ground. this is my first swap project and i want to do it right.