I am switching from an ohv to an sohc and I have a few ?'s that I havent seen answered here. What is the easiest way to identify the sohc, is there a year that is better than another, will my current trans bolt up, is there a certin year ecu I should use? I hear the PATS system is a pain, is that only in 01 and up and if so can I just use the wire harness and ecu out of say a 99 on a later model engine? Thanks and any other info would be great. I am putting it in my 91 2wd chassis.