But you say 3 tenths with a pocket ported w2 vs. a unported edelbrock. W2 flow more than edelbrocks out of the box and they have porting. So it is like comparing a ported head to a stock head. Or apples to oranges or a race head, to street head.
Not really. Any head will need to have some clean up port work done in order for it to perform. 3 tenths is a solid 30 horsepower and for just a head change that's a lot.
Let me say this, W2's are good heads. Probably the best cast iron true wedge head ever. However there are better heads out there, not in cast iron though. Eddy's are a step above stock cast iron and can be worked to some pretty good numbers but they still are stock type performance replacement heads, not race heads. To achieve 500 horsepower though a race head is not neeeded.
I like to think ahead. Will I be satisfied with this 2 years down the road? Odds are probably not even 1 year. So I like to save a little longer and spend my money on the best stuff I possibly can that has the capability to perform to my expectations years down the road. That's why I bit the bullet and went with W5's. I just wish I would have done it before I bought W2's.
