looking for jet spec for 660 raptor sea level full yoshimura system and pro flo air filter would like to run it with no lid should i use stock needles or gyt kit or dyno jet kit my experience with this style of air box set up on a grizzly was stock needles shimed and bigger mains wicked bottom end thanks in advance for help

 

180/185 mains. Needle on 4th groove from top and 27.5 pilots.

 

I've had very good results with the GYT-R kit.
160/165 mains maybe 165/170
25 pilots
2 5/8 L 2 7/8 R mix screws
Clips on 3rd groove
Float level even with the mating surface using the tube method. This is very important to do, it affects every part of your carb set up and is one of the biggest reasons people have problems jetting their carbs.IMO