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The average cold setting for aluminum heads and an iron block would be .006" tighter cold. Start at .010" /.012" then check them hot.
Doug

Most valve settings on the cam cards are for hot setting, aluminum heads grow so start with -.006 from the hot setting. OP, congrats on whupping the big C I've had three different bouts with two types, early detection is the key to succes

Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)