WDK ROKR impeller help please? thanks

Location
oregon
my little rokr ripped with my old 61x ported 701. but now im building a 865cc superbore 62t, msd enhancer, dual 44 miks, protec pipe, running at 180psi on pump gas. question is my ski ran great with a skat 12/17 in my mag 144. I cant upgrade to a bigger pump yet will this impeller be efficient with my new power bump or should I get a bigger bite?
 
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