Are you on the RE5 mailing list?
http://micapeak.com/mailman/listinfo/re5
Let us know whats wrong with yours when you get it sorted out. I still have a good hesitation at 4500 or so, runs great otherwise but the hesitation is so bad that in 5th gear I cant accelerate past it and need 4th to get me past and shift back into 5th. I am running out of patience with getting that pain in the butt carb properly adjusted