[Formulabruce]

ANSWER>> General Kinetics< Founder> Don Tewless. In the words of Former Pontiac Engineer Tom Nell on special Cams for Pontiac starting in 1967 SCCA cam for their 303 race engine , used in a race in 1970. GK was also involved in Chevy cam tryouts, big and small block, and produced hundreds of thousands of cams for GM, six cylinders too

Quote>"Tom Nell: Honestly, Jeff Young gets all the credit because he was the guy who did this program. We were trying to find out what the engine wanted. Jeff worked with a guy named Don Tewless, who was just starting a cam company called General Kinetics, in Detroit. Tewless would make us masters, and Jeff had him make up I don't know how many cams to run a basic test to determine what was the most important factor in valve timing that influenced the engine's power. Was it the lift or the duration, where you opened the valve, where you closed it, whatever?

(They were made on a upright Bridgeport grinder, some call them vertical grinders)
>>Tom Vaught may know more on this subject..