High Compression 390

AJ/FormS said
I'd still be shooting for max compression,and no way would I put open chamber aluminums on, not a chance.

But if you gotta have 'em, there is a guy on here that recently acquired a pair, and wants to sell them. Try the for sale section.

Don’t have to have them. Are you saying don’t get the open chamber version 60179? That isn’t what I am saying, I am saying get the closed version 60779, and add a couple of cc to the chamber. Or are you saying get something else’s?