What size main jet is best for Stock 2004 Blaster with FMF fatty at 1000' elevation? Also, which notch for the clip? Right now it has a 240 and cuts out bad at 1/2 to wide open throttle.

 

okay well for a stock carb with a toomey is 310 so with a 240 try like 360 if they make it

 

I didn't catch where you lived at. It was recomended on here with my k&n without the air box lid and my fatty pipe and power core 2 silencer to jet at around a 290. I had a 340 and when I switched to the smaller, it gave me more top end power.