I did the 6 cyl thing about 18yrs ago, Clifford Intake, Holly Carb (later an Edelbrock), Comp High Engery 280 Cam, Long Tube Headman Headers, Dual Exhaust, Extremely Detailed. All in my 1965 Chev PU. I will see if I can scan in some old photos of that thing. It was different, but a lot of fun, got all kinds of questions and comments at the local cruise and shows. Sounded like a pissed off bumble bee at high rpms..