i see these carb spacers on ebay anyone use one of em. do they make more power? also does anyone have any problems with air intake boot coming off.

 

Ultimate top end power....nope. But for making more torque down low, it should. Smaller dia openings make more torque due to the increased velocity. Same reason (in the other direction) as putting a 450r carb on the 400ex makes lower torque, but increased top rpm horsepower.

 

thanks