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Jim, that makes sense to me and somewhat confirms my findings...

problem is that it seems very hard to make a 8000 stall converter that has a 8 - 900 rpm drop from 9000, the one my converter guy here made did not work and he said it was about as tight you (he) can make a 7", does this mean I should go with a 8" and try to get the stall speed up, or



It's not just about making it tight with the 7in stuff. Fin angles (positve vs negative), clearences, stators, etc.....