Originally Posted by
manorchurch
I would not use an MCA-Jet head, but that's just me. Agree on the match-porting. Might want to investigate induced turbulence techniques on the intake side, since you lose swirl without the MCA jet. I don't know what's available for matched valve springs in the 72 - 80 lb. range, but that's worth investigating. No MCA, plus a bump in the spring-rate should up the red-line usefully.
The 30-over pistons I got are better than stock. I don't remember exactly ... seems like around $100 for the set?