I got the set-up today for sea-level jetting.Stock air box(no holes)145f/148r,.20 shims under the needles,2 turns out on the low end screw.This set-up is staight from Muzzy,it runs perfect.There is no flat spots or anything.As soon as I started it,I knew that it was right on the money.[img]i/expressions/face-icon-small-cool.gif[/img]

 

I dont have the muzzy but im jetted at 144f-147.5r. I thought this was kinda wierd but it works great.

 

Wonder how far up to go for Muzzy, K & N, O.W. and D.G. snorkle?

 

Pistonman,What do you have done to your air box? I have stock box with baffle cut out and a 2-1/2" hose running up to the for snorkle.

 

The only mod to the airbox/delivery is a D.G. snorkle and cut in hood vents, besides K & N

 

Try my jetting and shimming or 142f/145r mains.If you don't like put it back like it was.

 

What kind of humidity in your neck of Texas? Thanks for the assist -- I must not be talking to the same guy at Muzzy as you are, VN

 

Its around 85% to 100% and hot as a HO in Church[img]i/expressions/face-icon-small-happy.gif[/img]

 

Dude thats "Nasty Hot"....LOL [img]i/expressions/face-icon-small-wink.gif[/img]

 

I think the cooler (denser) air up here can take more fuel than less dense air. I will try .020--145-148 , then check plugs...