[Chariot cool head dome size?]

Chariot recommended Noss for the domes and he recommended 21cc. Just ordered them. 

Great customer service by Noss btw!

[Chariot cool head dome size?]

Hey guys, new member here, new banshee owner. I recently picked up a ‘98 banshee and I ordered a Chariot cool head for it.

If I’m running 93 octane pump gas, on a stock motor, what size domes should I get for the cool head? 21 cc or 20 cc?

It has FMF gnarly pipes and powercore silencers, otherwise pretty much stock. TORS have been deleted.

I’m in Saginaw, TX (suburb of Fort Worth) elevation is 728’. 

Any help is greatly appreciated, thanks!