The roller in my Nitrous 535 combo is over .800
Great to see another set of Pure Pontiac heads that will flow close to or around 400 cfm......and out of the box.
And if they flow those Numbers unported. Even better.
If they flow the same or slightly better then ported S.C's........ out of the box, even better.
And if they have a better casting quality, even better.
And if they don't have machine errors, even better.
And if they have the capability to flow 450 with port work. even better.
A high end head for high end use. and needed to keep up with the other aftermaket and different brand manufactures and the power they are making to be competitive with a Pure Pontiac Engine.
Bring em on.
