HRC300
01-28-2004, 05:18 PM
I have a '94 300ex with a supertrapp full exhaust, K&N airfilter, bored .20 over with a wiseco 11-to-1 piston. Right now i am running a 130 main jet and about 7or 8 discs in the pipe. At upper RPM's it stutters and doesnt run right. What size jet should i run? Some say go bigger toa 135 or 138 but others say it is over jetted and i shold go down to a 128 or so. What do you think?:confused: