I would sell those and buy a performer rpm. :P Have that same cam in a street car with a 406 with flat top pistons with world sportsman heads. I had a perf. rpm on it first with a stock 700 dp holley then tried Victor junior on it for awhile and switched back to the rpm...in my heavy car it was more fun to drive with the dual plane. Trans was a th350 with 10 inch converter and 4.10 gears Car is a 72 chevelle barge
JMO