I spoke to Crower, at the PRI show a couple of years ago, about a mushroom lifter grind for a slant. They could and would do a cam, BUT: They want all the other info on the engine "INCLUDING HEAD FLOW NUMBERS". I sould not even bother calling them, without all this info. If you are serious about this, send me a PM. I should have the business card with the proper direct phone number in my file.