generally, when you remove the airbox lid the bike runs like dog crap. if you don't want to buy a new snorkel, just remove the oem one and enlarge the hole. it's easier to tune if you tune it with some type of cover over the airbox lid. i went to a 128 main and left the pilot stock. this worked perfectly for me, but i read someone elses mods before i went in. so all the hard work was done for me. if i go big-bore kit, i'll have to go to a 132 main more than likely. do yourself a favor and buy the individual jets. if you don't, you will have no reference point to compare to with others because as i recall, no one ever talks about dynojet carb parts on here.
also, i never said the stock carb parts were better than the dynojet kit jeep, i said it's easier to refer to those sizes since more guys run these factory parts than the dynojet kit. i never have liked dynojet kits. i bought one for my sportster and used two jets, the rest of the kit has sat for over 3 years. i could've saved probably $60 and just bought the main and pilot when i installed my screamin' eagle air breather kit. live and learn.

 

just know that before you order that any posted advice on here will more than likely not help you out in terms of ballpark estimates for jetting since, in my presence, i've never heard anyone discuss trying to dial in a carb using dynojet jets. they are NOT the same as keihin jets in terms of size. this could be beneficial once you try and get it right because it is not easy to dial in a carb. but the already posted info on here makes it more helpful, but if you order the dynojet kit that info is useless to you. i just want you to look at all horizons before you click your right button. i could care really, but you being new you need to know how it is around here. it sucks to be left out in your garage at 1am with your carb all tore apart and not knowing any idea what size jet to put in. jmo