I have a 22re with 340k. Has been rebuilt I was told, not sure when. It doese't burn or leak oil enough to be of a concern maybe a half liter between changes. I have added a AFM from a 83 supra and put a cone filter on and a supra 60mm TB and bored out the intake were they meet. I have installed a used header I traded for (Brand not known)with a 2.25 exaust to the stock muffler with no cat. Also relocated the battery to shorten the intake pipe witch is now a turbo 90 deg elbow (smooth and clean) I replaced plugs. I was going to open up the Supra AFM and enrich the fuel by probably one tooth. I have not cammed it yet but when I find the right deal I will. Is this enough? it seems to be pinging a bit right now. Another question, the hump behind the TB on the inside of the intake, Is it a coolent passage? or exauste from the ERG? I have found conflicting ideas on the internet but I want to grind it out compleatly. Also will this have a negative impact. I do realize the main problem with the 22re is the air flow thru the head and valves. But so far all my mods have been very very low cost and just doing what is cheap for now. I have done alot of reading but am hoping for some one who has done this or just knows more than I.