well the intake side looks to be ported by stevie wonder racing, ray charles was holding the cylinder while stevie was grinding. lets see the exhaust and the transfers.
just keep it jd, and do not buy a sporty, you will be sorry, if u are gonna buy a harley go big. you will have a hard time trying to get rid of a sporty.
drag racing you leave wide open and finish wide open. i have run 38mm tmx on a stock stroke 350 on alky, amd 39mm pwk on gas on a 400 stock stroke cheetah. they both worked very well.