I tought you just wanted to rebuild,..I didnt know you wanted
to hop it up too.....sorry
If you have the money,..buy a rotaing assembly
eagle /eagle/ srp/je.
other wise you could just have the rods checked /resized/ bushed
crank checked , cleaned, polished,.
and a good set of forged pistons.
heads you could just get the exhaust a the next size,
with better valve springs,..