iam about to order hmf slip on exhaust and the alba adaptor kit with k&n air filter. i just dont know which company i should order the jets from hmf recommend 170 while alba recommend 155. can anyone help me with choosing the right jet/ jet kit.

 

If you just get a slip on, I would use a 160 with a k&N. If you get the whole system with the header, go with the 170. You can't go wrong with this advice. By the way, be very careful not to strip the 4 screws off the bottom bowl when try to install in new main jet. Good Luck!

 

thanks for the help.