There are no really good years. Some guys prefer the early year heads with no smog tube holes (63-72?). They all work up the same. I have found the later mexican cast heads to be thicker and heavier(82ish-87 ish).
I offer headwork and details can be found on my website.
For the dist use a ext coil HEI, these came on 75-78? air cond cars. You can use any coil you want. They are on Ebay used all the time. Just through a curve kit in and a adjustable vac can. Tom
