KLR650 2015 klr 650 jetting question

[Drz400nlm1990]

Hey guys i have a 2015 kawasaki klr650, just put a lexx exhaust on it and i bought the klx jet get from eagle mike, just not sure were to go from here. I will be drilling the slide and removing the snorkel from airbox, i am at about 600dt elevation and northern temperature's in canada. What jetting should i go with and what needle clip on the klx needle? How many turns on the idle screw?

The lexx exhaust has the spark arrestor removed, i also bought a 42 pilot jet that was recommended