Mine runs pretty good. It's no big block, though. My only fear about pulling out in front of traffic is frying the one rear tire that spins. And I run the a/c 90% of the time, which takes a couple horses out of it too. My dad has some old LA heads off a '69 318 along with intake, manifolds, etc. that I make look into doctoring up a little and getting rid of tbi. But for now, it's 100% stock and runs too good to want to mess with.