Mostly yes on the diff, Adger. There were some Boss 302's with 2.25 intakes. One year I think.
Heads, probably either the D0AE-N or the D1AE-GA if claiming as a 71. (there's 3 #'s for a 72 275 horse engine which are neither of these) Which I would be looking for myself if I could afford to run my car in "G". But alas, I cannot.
