Cometic Head Gasket
Yep. Most boost guys I know that run 1-2mm metals are going 60-80Ra min.
Just get a good set of Fel-Pro gaskets and at least have the heads checked before putting them back on.
I had one seal and one leak until I cut mine. Heads get more heat than the block at the gasket.
Oldman... That car is a quick trip to the big house. Be mindful about which shoes you lace up, and if you're running regular or decaf in your mug, if you are stepping out in it. Lencos are your friend for 1/4 mile. I don't know that straight cuts belong anywhere on the street, though.