Too old and should know better but still turn a wrench here and there. Retired and have a modern project almost done. About to put this old Iroc z back into service, Loves gas now. But you gotta pay for performance that doest sound like a sewing machine with fancy mufflers. Also have a 68 GMC runs nice with a 327 and a th350. Am about to chrome out the engine on it cause I never got to any of that. More worried about it running right at the time. Have one more project I'd like to get rolling but need a start on a ch***is. I want to install a good solid 4.3 and th350 in an old rod style ch***is of sorts. Any suggestions? Truck would probably be better for me.