I have 42 pilots in now and 140 mains, mixture screws 1 3/4 turns out...seems the 42 pilots might be right though it looks like lots of people use 145s. (have Bub's and K&N pods) It's running pretty good. I have some bigger mains coming 145, 150 so I'll try those for kicks. Also figured I'd try a shim. Think I need to find a dyno.
BTW...get the idle mixture screws from newbonneville.com...they are great and make adjusting the idle mixture much easier...with the d-tool I coudn't tell whether I was turning it or not.
