In the process of replacing a front head gasket that is seeping and leaving residue between the head and cylinder. Since it's winter here, I figure I would tear it down, both heads as well as taking the cylinders off as well. I am in the understanding that there is power to be had with milling the jugs to bring the piston closer to the cylinders deck surface. From what I read, I have been told that the S&S 117 pistons in relation to the deck surface is around .055 down. I'd like to use an multi layer system (MLS) head gasket such as Cometics, if there is an offering. I am also interested in a suggestion for the base gaskets as well, as I don't want issues in the future. Suggestions on cams would be welcomed and suggestions or tips on the process would also be welcomed. I've read something about a compression release tool? Needed or not?