Hello, Here is a something I have done over the years with just about every concievable motor combination.----warm the motor to operating temp and set one Intake and one Exhaust to specs( perferrably two that are easy to get to) then the let the motor go cold and check the clearance on those two valves. Presto!! You now have your cold valve setting for your given block and head combination. Of course on the flat motors the head being made from aluminum would not effect the valve setting but this will still get you a cold valve setting that will work time and time again for that motor. Maybe this will help--Paul
