I Have a 2005 Raptor 350 installed a Hotcam stage 1, White brothers E2 Exhaust, and a K&N filter. I installed a 25 pilot jet, 155 main/3 turns out on a/m mixture screw and on my last ride I had a sputter in between 1/2 throttle to full I need to ride again to narrow down the location. I now have installed an 157.5 main and have not ridden yet my question is am I going in the right direction on jetting or should I be coming down. I never had this problem since I installed the Hotcam and messed with the jets. I also live in Pittsburgh, PA roughly 1200 ft asl.