I am doing ad engine overhaul after last summers crank failure......that setup ran a noss cool head with 20cc domes, this year I figured I'd go with custom cuts......I went with John at passion because he was doing other work for me anyways....I gave him the setup, ign,oct,pipes,port, the works and I get 23cc custom cuts for same setup, won't this hurt my compression ratio.......not trying to bash in any way.....John is great at what he does .........just trying to get a better understanding....if I'm leaving out needed info lemme know,