I am putting the A1 (P29's I guess) in my Z6 block. I'm going to use the A1 rods and stock crank. Maybe a Y8 2 layer head gasket, to raise compression a little. Also going to run the Akmee type R head pack (much love Frank!). Will I be okay with the compression level with that setup, I'm not gonna run anything but 93 oct anyways. Will it be okay? And how much can I mill my head and it be okay to drive everyday?