Used Diamond W2 Aluminum Heads Yay or Nay?

I guess it kinda depends on what you are wanting as far as power, and how much you want to spend. I believe you would spend considerably less porting the Eddy's than switching over to W2's. Like I said, it really depends on your goals.

For what its worth, my 408 with "stage 2" ported Edelbrocks, 1.5 comp rockers, solid cam, Victor, 950 carb, 727, 4.10 gears, runs low 10's in my 3250lbs Barracuda.