I went incredibly over the top with mine as well as set massive barbs in so I made an idle bypass pipe so I could bleed air previous throttle butterflys if I required to. not a vital move but I would like idle Management. The fifth generation or Black Top https://4a-ge-engine-for-sale38135.thekatyblog.com/30411451/the-basic-principles-of-4age-20v-for-sale