My current MODS are. FMF Fatty Pipes w/PowerCore Silencers, Boysen Reeds in stock cages, stock airbox with snorkel removed, lid on w/ Drop-in-K&N filter. Very soon, as in as soon as UPS gets to my house I will be adding Cool Head with 19cc or 20cc domes and will be going +4 on my timing. I am currently jetted at 260 mains, needle in middle clip, stock pilot and 1.75 out on the air-screw... Seems to be jetted close? Will I have to rejet for the new MODS?