how much power?

[cheeta]

i am in the process of rebuilding my bike and i am thinking about adding a cool head and an adjustable timing plate(all i have now is pipes filter jets and boyesen reeds) will advancing the timing and the head make a noticable difference and if it will what size domes should i use? i have fmf gnarly pipes with powercore 2 silenceers and im at sea level

[zach45]

my bike now has basic bolt ons like yours and i run 20cc and the highest octane gas at the pump

[Wildcardracing]

It will depend on your octane available at the pump, for 91-93 octane I wouldn't recommend any smaller than a 21cc dome for a stock port banshee at sea level. Both advancing the timing and increasing compression will add a noticeable amount of low to mid power and smooth out the power band a little.

[zach45]

It will depend on your octane available at the pump, for 91-93 octane I wouldn't recommend any smaller than a 21cc dome for a stock port banshee at sea level. Both advancing the timing and increasing compression will add a noticeable amount of low to mid power and smooth out the power band a little.

i run 20s at sea lever from almost day one when i bought the bike new?