dynojet question again

[topdawg909]

I have a 2003 400ex, airbox lid removed, stock air filter, modded stock exhaust. i just purchased a NEW dynojet kit for 20 bucks couldn't pass it up. i installed it and the bike runs great and performs good. i put the 165 main jet in it, needle jet at 3rd clip. Is this a good jet or do you think i should run something else like it says 170 main for aftermarket exhuast, should i try this since my exhuast is modded? or run the 165? i drilled a hole in the exhaust like i saw on this page http://home.earthlink.net/~gellett/exhaust/index.htm
by the way i am at sealevel
let me know what you think thanks travis

[hondarider2006]

with only the stock exaust mod, and a open air box lid, a 165 should be fine. I had the wb e-series slip-on, k&n filter, and its pretty cold here and I am running and 165. Do a plug test, and that will tell you. If its running fine, it should be pretty good. My guess is that you should be fine;)