Chaz 58 Watch it now...your getting into propane territory like I do,take out heat riser weld holes shut with stainless. I suspect that updraft system would work good on propane don't need that sorry choke to wash your cylinders with gasoline every morning. They tell you not to mount propane carbs upside down,never saw a reason you couldn't if it leaks will run over either way. They hated that stub-nose fuel system in under there.
