well blew the headgasket.... the head is going to be milled .020" or .010 depending on the headgasket I use. I am going with an extra thick cometic headgsket. should I drop the comp. to 8.6:1 or 9.3:1? I'm leaning towards 8.6:1... I'm taking suggestions. I was running 9.8:1 comp with a .043" cometic already. also I'm running a t3/to4e 57 trim and my wastegate will only let me go down to 11psi(.8bar). I want to lower the comp. to lessen the stress on the stock engine.