I'm working on some trucks for a lady and she has 2 trucks. A 93 1500 with a 350 that destroyed itself and I think it is a 91, it's the next older body style, with a V6, I think it is a 4.3. The plan was to dump the 350 and put the V6 in the 93 cause the bodys good. They are both TBI so fuel isn't a problem and I'm told that the V6 will bolt to the trans in the truck so that isn't a problem. But my question is do I need to switch the computers and if I do do I need to switch the wiring harness or will the harness still work on the V6? Thanks in advance.