WR450F GYTR jetting VS Milage

I recently picked up a 08 WR450 from OTD Auburn and I got the GYTR Power-up kit & the promoto billet exhaust tip. I installed all the new jets and needle, adjustable air/fuel etc. disconnected the grey wire the whole enchilada. I am still working through tweeking it in for my area and am considering moving from the 4 posision on the needle to the 3rd, I am also considering a smaller main jet. The issues I'm having are 1 my milage sucks, I realize there has to be some sacrifice for the extra HP but I'm talking like 50-60 mi./tank(stock). I put a 3.6gal tank on and got about 100 mi. last weekend but I still would like to get out a little farther. It also seems a little ruff when I level off on the throttle.

Sorry to say with or with out mods thats all my 07 wr450 can do.My xr440 gets over 50mpg.Anybody have answers for better MPGs

Sorry to say with or with out mods thats all my 07 wr450 can do.My xr440 gets over 50mpg.Anybody have answers for better MPGs

The XR is a slower reving motor were the WR is a snap short strock motor.

I found that my XR650r got what my WR450 got when doing the same rides back to back

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