[airpanaia]

I would either stick with the stock GM headgasket or go with a Mr.Gasket MLS head gasket. Cometic also makes a good headgasket. But maching both the head and block is recomended but I know a lot of guys who just surface the heads with no sealing problems.

I used to be the product manager for Mr.Gasket and the MLS head gaskets we purchased from the same company that supplied ferrari and austin martin. For being an old brand name surprisingly they let me bring in a high end high quality MLS gasket since we didn't have the ability to make them in house.