rockered blaster ss865

Nimmer705

Big Bars
Im looking for prop info, I recently instaled a xmetal ss865 in my rockered blaster, running msd enhancer, 44 dual carbs, 144 pump with bored 85mm nozzle with xmetal trim, factory mod b pipe, xmetal water box, problem is I cant seem to get it to hook up off the line, just bouces off the rev limiter (8000) once i get on plain it flies. But if i try to hit my own setup wake it just spins, until i release the throttle and get back into it, Im probelly dealing with a too small of prop. So any idea as to what i should try? I currently tried a 11/17 skat trac it sucks off the line but once im moving its great uptop, tried a stock prop 13/18 seems better down low but anything after 1/2 throttle is just hits the limiter. Ive been messing with the b pipe screws trying to see if that helps but doesnt seem any better, the pump is sealed no leakes that i can find,
 

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