My car has stock manifolds, I think headers would be super tight. I had to go to another oil filter, the one called for is nice big filter, but transmission coolent lines in the way, so had to do the like STP 3675. Its a 350 Turbo with shift kit. love the shift kit. The motor mounts were inverted it bolted right in. The a/c deal on the firewall makes #8 a pain to change, but its one of those things. I don't have a/c. It is a pleasure to drive, kinda expensive pleasure for my wallet, so this car sit 2 yrs not even started, car I was driving laid down. Put a battery on it started right up. I hope I have such good luck with my 58 Metropolitan convertible, definitely easier on the wallet.