This is all for an 02 Raptor! Ok, I am currently running a full Sparks X6 system, pro design adapter w K&N, snorkle removed, lid on w 2- 2 1/2" holes in lid. Currently runing gytr jet kit, 25 pilot, 160/165 mains, needle on 3rd clip, 3 turns out on the air/fuel screws. I am going with a stage 2 cam, new valve springs, new high compression 11:1 piston, with a 1mm overbore. so its a 673 to be exact. Where abouts should i start with my jetting for my new setup? Thanks in advance!

 

I would try 175/180 and raise the needle up one if it pops on acceleration do 180/185 on the 4th, good luck it should hall AZZ

 

Thanks rotty! Il give that a try! Anyone else have any opinions

 

TTT

 

Sounds about right, maybe 185/190.

 

What size pilots???

 

Your current 25's should be ok, but bump up to 27.5 if you get into cold weather. It may not be completely necessary, but it helps it keep running when it gets chilly. I'm running 30's and they are too rich, but they didnt have 27.5's in stock at the dealer.