I own a 91 LS with a b-16. im running the stock computer with the stock harness ( v-tec is hooked up to a switch on my dash. ghetto I know). I hear from some to get the PR3 computer and the others to get a P28. I dont exactly know why a single cam computer is a popular choice but if it works, why not. If someone could shed some light on this situation it would be greatly appreciated. Thanks.