Slant Six Solid Roller Camshaft

I ported my slant head one carbide bit that cost 25.00, I ported 3 heads with it. Messed up one, but got the second, then ported 318 heads with it. But that's backyard no numbers just probably *** Dyno lol. But its a task that if you take time and practice on bad heads or whatever you can get some where decent. Props to you guys taking the time to measure flow and cut heads in half so other can learn to save a couple of bucks.