I finally got a new piston for my 250, does anyone know what the right jet for my HPD pipe is? I realy dont want to ruin another piston or possibly the bore! "PS you guys were right there was a hole right in the middle ill put a pic up later"

 

call Daryl at Hpd and tell him all the engine mods you've had done and he'll let you know what jet to use.

763-389-3336