New Cool Head, What Domes Do I Run?

[blackred03]

I just got a pro design cool head off ebay, the auction says i get it with my choice of domes. the only other mods to my bike are TR6 pipes, and i would still like to use pump gas. can anyone help with the dome size? oh ya I currently ride in upstate NY and im unsure of the altitude if that makes a difference.

thanx

[chipdog]

go with 20cc domes and check your compression after you installed the head.

[shee4202]

I just bought a 2000 bone stock. I put fmf sst, boyson pro reeds, spacers, kn filter,

4 degree timing key. I also bought the cool head and the people at alba action told me to use 21cc domes. I use 93 pump gas and it runs great no problem.

[doltz]

If you are going to advance timing I would run 21CC on pump gas.

 

I run 20cc with a +5 timing in Mi. & my compression is 162PSI.

 

Before the cool head I had a .030 cut stock head @ 140ish PSI.

 

I run 110 only & it runs great.

[blackred03]

thanx for the info i guess ill go with the 21.