Thanks for the info. I do have the 8.1 pistons so maybe i could think about milling them also. Is that a prodedure that can be done relatively simple by my machinist? I would definitely like to get in the 9 to 10 to 1 range. What horsepower could I expect with a 270 duration .520 lift cam with these pistons , my head has been milled 0.60.
thanks dave
