Freestyle Girdled head?

[jjk8]

I've kinda gone back and forth whether to buy a girdled head or mill my stock head. Anyways, I think I'm going the girdled route. I'm looking at the ADA head. I'm trying to decide on which domes to get. I ride between 4500-6000' of elevation. The 33cc on the lower end would put me at approx 168 psi (200sea level - 31.5 for elevation adj). The 31cc would put me at 183.5. I want to stay with pump gas. Our high grade here at these elevations is 91 octane. I mostly freeride with an occasional wot, but not for too long.. I'd like to get as much out of this upgrade as possible without compromising the motor. What's your opinion? THX!

 

[fast superjet chase]

i ride at 5000ft 33cc domes put me at 180 its also going to matter if your ported you only lose about 7psi per 1000ft too so keep that in mind hope that helps

 

[jjk8]

i ride at 5000ft 33cc domes put me at 180 its also going to matter if your ported you only lose about 7psi per 1000ft too so keep that in mind hope that helps

Good info. Do you know what your your compression was prior to adding the head? Also, are you running 91?

 

[fast superjet chase]

Ya im running 91your wot runs all the time not sure what it was before the head.

 

[FearMyWrX]

Might as well get a girlded head, it would hurt especially if you get a package from someone like JetManiac or something.

Many say that the Girdled head isn't NEEDED which I agree with but... Why not