So I have this 94 cobra, and it has a cam in it that is way to big. Now, i am leaving for NJ in two weeks (they sent me home early from Afghanistan to go to West Point Prep School) and I don't think that I have the time to swap the cam for a milder one. The main problem of the car is that it runs rich as crap, so a new 76mm C&L is on the way, but i dont think this will solve my problem, so i wanted to put in an older computer... one that can adjust better to the mods done to the car. what all do i need to do this? i mean, is it just as simple as chaning the boxes or is there a harness i need or something>?