i put my clamp on last fall... went to a 172.5 MJ and a 50 PJ... that was all i changed....
went to put my box back on because of mud water and i heard of the lost performance... put everything back the way it was before my clamp on... and at half throttle and above it cuts and pops like a MFer.... what could have happened...

 

any1?

 

You need to move your clip on the needle back to the 2nd notch, run a 45 pilot, and 150 main and it will run fine,, Make sure all the snorkal lines and air box is sealed properley. My pred is running mint with a clamp on and a 45 pj, 175 main, and needle on the 5th clip... def increased some hp,, but will have more when i get my original motor in it... Make sure all that is correct and then try it, there is no way that it can run shi**y,

 

i never moved the needle... i ran a 162.5 with my pipe and k&n... before.... why cant i now... i dont get it.
i shouldnt have to go back to stock with my pipe and k&n