Cam Centerline questions

Here is a question. Pretty much every solid I have looked at gives a different stall for a 340 and a 360. Obviously, it is because of the longer stroke of the 360 moving the rpm range of the cam down a little. How much lower, in general, does the rpm range, and stall speed, move in an engine with a 4" stroke? Also, can a stroker get away with using less static compression than the cam manufacturer recommends?