Hello Lancer,
Hope you are doing well. Also hope to see you at the 3 Twisted Sisters ride next year. Yes, let's all do it.

Well, I think I am ready to play with the carb. I have the 06 S40 on I which I put an HD muffler just before the Dragon ride. The motor seems to be running well but a couple of weeks ago I opened it, got to 80 and that was it. I've had it to 85 before with still some throttle available. Has stock air filter and I have not touched the carb. Has just over 18k miles on it.
I want to go with a performance air filter (possibly K&N standard replacement or some pod air filter) and rejet fot best overall performance. What do you recommend for the jets and for the air filter? Thanks.