512 B1 heads HP?
This wasn’t even the finished job. I think I have those pictures on my desktop to save time next time. I stopped at 420 cfm on this set of B1 heads and will push harder on another set I have for a future build.
This wasn’t even the finished job. I think I have those pictures on my desktop to save time next time. I stopped at 420 cfm on this set of B1 heads and will push harder on another set I have for a future build.