Well, i'll still try to change out the cams. As far as leaning it out, its already running lean, everytime I check my plugs they are white... And anyway how do you lean it out more? I also don't have the hi flow cat on yet... Its a new obd1 cat I had the shop put on, after the first one they put on failed... So this is my second cat, and it still has less than 200 miles on it. Also how do I get to the pcv valve, do I have to take the mani off? because that would be a pain