I cant remember the exact cam number, but maybe on amazon you can find Frank McGurk's little book on hopping up the gmc and chevy six. McGurk made a lot STREETABLE products for the 216-261 chevy sixes and maybe some body can stll grind one of his cams. There is a place named Delta cams in Washington state?. Some folk on the inliners site talk about them. I used to have the booklet, and once had a regrind of one of his 3/4 cams-it had a little lope to it and was pretty peppy in my '54 car with 3.70 gears. Frank was real big on making good streetable cars with some competition only products too. Cant speak of bill fishers book-never read it. Frank had some cams that were good for PowerGlides too. Try to find his book and then look for a cam grinder.