GN1 flow numbers

[fastblackracing]

Does anyone care to share the flow numbers of their Champion GN1 heads. I am taking mine to get checked and was curious whats out there. thanks ,Mannie

 

[Pittsburghkid]

http://turbobuick.com/forums/threads/gn1-rs-ported-unported-stock-heads.216319/

Your answer is on page 4. Too bad all the pictures are gone.

 

[BEATAV8]

My numbers posted in there. Feel free to ask any questions.

 

[fastblackracing]

My numbers posted in there. Feel free to ask any questions.

ok thanks, I had started looking at there but saw the pics were gone and never made it past page one. Did you leave them alone after that or did you end up doing any additional work to them?

 

[BEATAV8]

Nah heads are on the car with that same mild port job.
With .517/.530 lift hyd. roller cam, PAC1201 springs. ~148lb on the seat and 408 over the nose. Car trapped 132 @ 5850RPM. 3900lbs.