Hello, I'm looking for an impeller that will give more top end for my rn sj. I don't remember my impeller number but I guess it's too small for my engine set up. I've 760 engine with fp dry pipe type 4 and flame total loss with dual 46 buckshot carbs. bottom and mid are very good but top end could be faster if I can get a bigger impeller. Anyone has idea on which number should be suitable with my enigine?
thanks
thanks
