Im building a 383 and was wondering how much difference a standard deck height from a zero deck height makes in compression points. Most sellers of rotating assemblies say a number. For example some say the compression is 9.7 with 64cc heads. But is that with standard deck height? I basically wanna run about 10.5 compression with my world 64cc heads but am contemplating some flattops or some dished pistons. Any help is appreciated! Thanks!