Ok Tiger I think I remember something about that, I only fit Powertorques on the Victa bases because they are hard to come by, I have plenty of other bases to throw a 4 stroke on. A bloke dropped off a Victa with a Tecumesh on it today and my eyes lit up because it had good wheels and non rusted base. Ripped the motor off instantly, I don't bother with the Tecumesh because nearly every time the carby is not worth wasting time on