School me on W2 heads.

Price compare & Flow rate examples since it is always a case of your wallet limiting your performance.

Edelbrocks
http://www.shadydellspeedshop.com/edelbrockheads.htm
W2
http://www.shadydellspeedshop.com/w2.htm
W5
http://www.shadydellspeedshop.com/w5.htm
Various ported head levels here;
http://www.hughesengines.com/Index/...BIg==&level1=Q3lsaW5kZXIgSGVhZHMsIEFsdW1pbnVt

As you can see, for all of these stock style HP heads, the W5 has attractive high lift flow abilty and the low end is excellent as well. The Edelbrocks fall a little short and the W2 is right in the mix up high.