hmm that 10:1 number i posted seems to be the z6 mini-me.. and i hear that mini-me has a higher compression than the y7/y8

so i may not be so bad afterall. i'm going to look into cometic head gaskets.. just for a lil added thickness.

y7/y8 compression seems to be zero'ing in somewhere around 9:7 - 9:9:1