Ok guy, i got an 87 v10. It had AIR but it wasnt hooked up to the exhaust. i pulled it all off. Without everything hooked up its running a little rougher. Does the computer need to be reprogramed? Also for exhaust plugs, i just cut the lines short and hammered them flat. It works for now but i need something better. The fittings appear to be 5/8" double flair, can i get a plug for this? Thanks guys!