I got some good advice from you all a little while ago regarding my mods. The plan is to add the freak and Pingel Petcock to the Thunderbike pipes and removed AI on my 03 Speedy. The consensus was 150 mains, 45 pilots and the TBS needles-no shims. I dont have ready access to the TBS needles but the kit from Jenks bolts has Thruxton Needles. How will this change affect the size of the mains and pilots?
