Dan might disagree with you considering he's managed 7800 with just a ported 587 head @ 410 cubes. Do you think the CSA of his heads would be bigger than a ported W2?
What was the lbs-ft per cid ? A 410 with 1:1 at 7800 rpm is about 548 hp and with 1.5:1 at 7800 rpm is about 822 hp the lbs-ft per cid makes a big difference.
