Thanks man. I would think that there should be a lot more power to be had. I guess I will need ot open those heads up at some time and go with a different cam. Not sure how much it will change anything, but the bore is 4.35 and the stroke is 4.375. Here is where the change (for the worse) will come in, the cam has gross cam lift of .315 with a .050" duration of 228 and 235. Thanks again.