basically, any year besides the intergral head is better than before. you can usually find intake and exhaust from someone on here, check the classifieds, or if you want hipo stuff, ebay has some good finds for offy, clifford, etc etc.
as for PS..no idea. my '69 doesn't have it. lol. just one big ass steering wheel.
if you want simplicity, you can;'t beat an offy 4 bbl intake, with like a holley 500, or Carter/AFB 500..anything in the 500 cfm should feed 'er quite well. the offy has skinnier runners for more streetable low end torque, which is what these 6's aare made for.
greetings from Northern Wis, and cheers to keeping it InLine.
.later days.
.sam.
