Hey Oilsmoke, I'm there too. My 34 mikunis idle perfect and haul ass at WOT but bog off idle. I'm using a 55 pilot, 270 main and middle clip on the needle. I'm about sea level right now but I normally ride at 4000". Hope we can figure this out.
O.K. I've read all the forums and can't find any help to my question. I installed the Vito's 404 big bore kit and also installed a pair of 34 mikuni's. They have 55 pilots and 270 mains on the middle needle groove. I ride at about 2000' and most times about 70 degrees. I'm using a Vito's hemi head with 22cc big bore domes and K&N clamp on filters. I need a ball park figure on the jetting during break in. Some ball park figures apprecated.