chayote86 Posted February 10, 2012 Report Share Posted February 10, 2012 Would 39's be too much carb for cubs? Im planning a build nd happen to have a pair of 39pwks. Quote Link to comment Share on other sites More sharing options...
RadarRacing Posted February 10, 2012 Report Share Posted February 10, 2012 Perfect carbs for any size cub. No question. We run em on ported 350s all the way up to big cheetahs and they work great. Quote Link to comment Share on other sites More sharing options...
chayote86 Posted February 10, 2012 Author Report Share Posted February 10, 2012 Perfect carbs for any size cub. No question. We run em on ported 350s all the way up to big cheetahs and they work great. Cool thanks Radar Quote Link to comment Share on other sites More sharing options...
georgie Posted March 10, 2012 Report Share Posted March 10, 2012 Perfect carbs for any size cub. No question. We run em on ported 350s all the way up to big cheetahs and they work great. Works good on my 392 cub. with inframe shearers Quote Link to comment Share on other sites More sharing options...
possum Posted March 10, 2012 Report Share Posted March 10, 2012 What type of jetting are u guys doin with 350's with 39's ? Quote Link to comment Share on other sites More sharing options...
georgie Posted March 11, 2012 Report Share Posted March 11, 2012 What type of jetting are u guys doin with 350's with 39's ? This might be a good starting point. sea level, temp. mid 80's and very humid. 175 main 52 pilot 1 1/2 air screw. for inframe shearers 392 cub. Not sure about 358 cub jetting. Depends also on what kind of pipes you running. Quote Link to comment Share on other sites More sharing options...
RadarRacing Posted March 11, 2012 Report Share Posted March 11, 2012 Usually around 165 at the smallest up to 175 , 48-55 pilot, CEL,CGL needles. Quote Link to comment Share on other sites More sharing options...
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