318 piston's and quench

I have kb 167 pistons on my 318/w stock open chambers heads.
Pistons come 0.012 up from deck and gasket is 0.039.

Quench area is really small because of open heads (about 1/4 ich ring pistons outer edge.
Because of head design I really don't have effective quench area.

But engine is fairly high compr. Head volume is 65-67cc when I measured it. About 9.5 when I calculated it.

Cam is lunati voodoo 701 second smallest so dynamic comp is fairly high too.
Fun and wery street friendly to drive

If you get some good quench heads (302) and dynamic compression to about 8.0-8.5 should be really nice upgrade to power from stock 318, and you probably don't even lose mpg.s from stock, I didn't. Least when I am not goofing around :)