Thanks Art. I do have a cnc milling machine. I just ordered the plans for the engine from Upshur Engine Works for $10.55 I figured that was easier than using all my brain power to try and remember who I loaned my other plans to. I made my other cam using the Gene Switzer Cam Grinding Fixture I built many many moons ago. I bought the SIC issues 39, 40, 41 to build it. That is a long story. I boxed it up and it is stored in my shop loft, I got into steam engines, rc boat building (mainly tugs and coastal fishing trawlers), then into wood turning (bowls mainly) now I am back into machining and rebuilding some of my engines.