Im building my 5.0 ranger, and the 5.0 i have is an H.O. I couldnt get the computer out of the donor car because its getting another 5.0 in it, the computer i have is for a 5.0 but not H.O., 8KH is the number on it. I was wondering if any companies make an aftermarket PCM or if i can use the one i have. Also i have heard the A9L is the best PCM? New to the whole Ford world. Any info helps, thanks guys.