Motorcycle Repair: 1985 Harley FXST 1340, harley fxst, drag pipes

Question
Roy, I am changing the exhaust on my bike from the 1 3/4" to 2" drag pipes.  Can you recommend what size jet I need to use for this change?
Thanks, Andy

Answer
Actually I can't.  If I was you I would just run it and see how the plugs look after a short speed run.  I don't do any work with drag pipes because except for wide open throttle (like at the drag strip) you lose some torque and horsepower and performance by using drag pipes.  All you get is noise.  Particularly if you have no other modifications to the motor.  good luck.