fatboyracingg Posted November 3, 2008 Report Share Posted November 3, 2008 i have 39pwk on my 392 cub. i think the are robbing me of alot of power. if i go smaller like to 35 pwk will it run better. Quote Link to comment Share on other sites More sharing options...
bigboybanshee Posted November 3, 2008 Report Share Posted November 3, 2008 No, they are fine. I ran 39pwk's on my 350 and it hauled ass....you may have to tune them a little differently, but 39's were great on my stock cylinder engine, and my 4mil cub, and my 10mil cub Quote Link to comment Share on other sites More sharing options...
KEVSWS6 Posted November 3, 2008 Report Share Posted November 3, 2008 Those cubs love lots of fuel and air. Quote Link to comment Share on other sites More sharing options...
locogato11283 Posted November 3, 2008 Report Share Posted November 3, 2008 whats your jetting in them? and what are your other mods? Quote Link to comment Share on other sites More sharing options...
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