Carburetor Recalibration Kit Stage 1 for 1999 Twincam

include the jets, needles, instructions, etc. necessary to re calibrate stock engines with CV carbs
Re calibrate your stock Keihin CV carb to make full use of the performance potential
Kits provide broad-range performance gains and maintain stock drive ability
This product is intended to be used only on racing vehicles on closed courses, and not for use on roads or vehicles otherwise subject to emission control requirements. In California, this product should not be used on any vehicle that is registered or licensed for use on public roads.