M&M Intake Manifold for W8/W9's

Have any of the W8/W9 guys seen or run one of the M&M cast two four manifolds?

http://mmcompetitionengines.com/cast-aluminum-intake-manifolds.html

There is a 66 nova with a 420 inch sb2 with one of those at local track, runs 5.20s on two guns. I am not impressed with the performance.

I believe he is in the 3300 lb range.

Totally different intakes. The SB2 and P7 is limited to the intake ports in heads are turned to work with single 4 manifolds. They have cylinder balance issues, I'm told.

W8 should not have these issues, Mike.

This got my attention I wonder how much horsepower over a 420

Strange as he bought the heads and intake as a package from them for his car. They are not a nascar take off head and where cnc'd by M&M for a drag car.

The general architecture for the Sb2.2 and P7 heads is for a single 4 brl. The casting for the outer runners angle in toward the centre for a 4 brl intake. Not the best scenario for a dual 4brl intake,

I know a few friends w sb2 stuff and the M&M intake for the head is Way to small period.
The 420 cut in half is in the opinion of quit a few very very hard to beat.