mattsny83 Posted May 9, 2009 Report Share Posted May 9, 2009 I am going to build a 4mill long rod motor with cubs cly What size of CARBS should i run going to run on alky. Also what kind of Hp should i see Quote Link to comment Share on other sites More sharing options...
00tbanshee Posted May 9, 2009 Report Share Posted May 9, 2009 39 pwk's are pretty popular for 421 cubs.you can convert them over to alky.u can can spend the money and get yourself a set of lectrons which are nice for alky.hp its hard to tell.you going to have it ported or not and who will be doing it? Quote Link to comment Share on other sites More sharing options...
bada450r Posted May 9, 2009 Report Share Posted May 9, 2009 I am going to build a 4mill long rod motor with cubs cly What size of CARBS should i run going to run on alky. Also what kind of Hp should i see if you have a builder thats doing your work talk to him.........if not i prefer makunis i have never had problems with them..some 38 or 41 should work great :thumbsup: Quote Link to comment Share on other sites More sharing options...
mattsny83 Posted May 9, 2009 Author Report Share Posted May 9, 2009 if you have a builder thats doing your work talk to him.........if not i prefer makunis i have never had problems with them..some 38 or 41 should work great :thumbsup: Jon at Sand toys will be geting all my parts and drag porting them Quote Link to comment Share on other sites More sharing options...
RagunCajun Posted May 9, 2009 Report Share Posted May 9, 2009 (edited) if you have a builder thats doing your work talk to him......... +1. Im running 30 oko's because that's what my builder recommended. Runs like a bat outa hell. On that note, it was crazy fast with stock carbs as well. It was a good testament to all the people saying you need bigger carbs. Edited May 9, 2009 by RagunCajun Quote Link to comment Share on other sites More sharing options...
00tbanshee Posted May 9, 2009 Report Share Posted May 9, 2009 Jon at Sand toys will be geting all my parts and drag porting them i agree with what was said,john nows his stuff so he will beable to let you know what will work best with his setup Quote Link to comment Share on other sites More sharing options...
bada450r Posted May 10, 2009 Report Share Posted May 10, 2009 Jon at Sand toys will be geting all my parts and drag porting them i know jhon likes kehins.....however he does not port hell be sending your cyliders out and putting the motor toghether himself.....his a good guy and knows his shit big time...imo.......what is he building for you? Quote Link to comment Share on other sites More sharing options...
tripledsracing Posted May 11, 2009 Report Share Posted May 11, 2009 if the bike is drag ported w/all the bells and whistles 41mm mukunis work awsome i have them on my bike which kim recommends muks anyway...or 39 pwks are great also.. Quote Link to comment Share on other sites More sharing options...
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