short n sweet...just bougfht a 05 450..has a air filter(open box), trinity stage4 pipe, 175 main jet, and a after market air/fuel screw thats turned out 2 1/4 turns....

NOW the fun starts...

I finally get it started and it runs kinds ruff if im tring to race it (ride it hard as hell), it takes the gas. but if i try to putt around the yard i have to ride the hell outta he clutch!! or it stalls...it wont take gas at a low rpm....and the header is glowing all the way back to the pipe!! i know they have thin header walls and glow a lil, but not like this...

anyone know what the hack is goin on??? thanks