Hi Norman, I wasted a lot of my time and money trying to work with Dyno Cams. I am located in North Carolina, and so is Dyno Cams, I made many calls and several [expensive] trips to discuss Whizzer camshafts with them. I was told by them that the project wasn't big enough to warrant their attention, because I wanted to purchase less than 100 on my first order. After talking to several other camshaft companies, I was told Dyno Cams had taken on a NASCAR project, expanded, and had commited all the staff to work on the new project. When I was there it was clear that the company had just increased thier floor space. I made the mistake of thinking a company that made it's mark in the industry by making camshafts for small motors [Briggs & Stratten, etc] would be ideal to produce a very similar product. The Whizzer camshaft looks exactly like a B & S shaft only a little smaller. However I was able to connect with another well known camshaft company and the owner gave me a guided tour and has done several re-grinds for me, but are far too radical for street use. The company is called Precision Cams and is located in Wilmington, NC. Because of the clearance of the camshaft lobes and the crankshaft throws, it is necessary to reduce the base circle in order to get the lift above .212".
Have fun,
Quenton