Another jetting question

[YZ400EX]

Ok I just got a HMF full system, but havent installed it yet..I would like to know any reccomendations for the jetting. So I have a full HMF system, K&N filter and outerwear, Powroll vented airbox lid, and I also have a webcam if it matters. Also I live in Idaho so elevation could play a part. I had a full big gun system before this one..Will the jetting differ much?? I know I can do the plug test, but I just want to get people opinions..I seen the specs from the HMF website, but I think they are going off of California elevation for their specs..Anyways shoot me your suggestions!! Thanks

[exboy400]

you should be fine where it was with the other system...if not it's not hard to move a clip position or a main jet

[cals400ex]

i would go with a 158 keihin mainjet
4th needle clip position
42 pilot jet
2.75 turns out from lightly seated on the fuel screw

fine tune from there.

[YZ400EX]

Well I think first I am going to run it with wat I already have installed and if it is no good then I will try that last jet selection..I just hate getting into these carbs..man what a pain..Thanks for the replies guys!!