Originally Posted by
CBURKE
really, I was alway told they flow like a Type-R head?
And yes 8 lbs is fine as long as you have a good tune.
On the head, it really don't matter if it has a port and polish if it was never flow tested.
Here is a comparison between a B16 head and a GSR head done by Alaniz a while back. So close it really wouldnt be noticeable