i have an 88 blaster with an fmf fatty pipe, graydon proline silencer, k&n air cleaner ,open air box, the motor is bored .60 over with a vitos superstock cast piston, a reed spacer , and fmf reeds, . and i was wondering if anyone could tell me what size jetts to get

 

FMF recommends 35 pilot, 280-300 main with an open airbox and needle the 4th clip from the top. That's where mine is at and runs great.