Jets

[raptor350main]

I have a Raptor 350 with a FMF Powercore 4 and Pro Design intake kit with a K&N Filter and i was wondering what size jet you think i should use? i dont know my elevation but i live in Madisonville, KY and it is around 70 degrees and warming up

 

[yamahaquad350]

150...155 maybe....you might wonta get the next size up pilot jet also 45... i think ??? :