I just got a Dellorto for my MBK, and I can notice a much stronger powerband from 5-15mph, but I'm topping off around 20-22mph with a 68 jet (I hit 25-26mph with the Gurtner) Yes, I'm running rich, and yes, I have size 62-66 on the way, (60 was too lean), but, what do you think the best size jet will be with a long intake and a otherwise stock MBK? Any ideas on what speed I'll be able to go? THANKS!