LA intake to magnum head ??

DionR said
In the article I read they added some block or tubes cut at 45 degrees or something. It would make more sense if I had a picture, but I don’t. And it’s not anything I’ve done either.

Really confused by this thread. Intake is a dual pattern? It’s a crosswind, oh wait it isn’t? If it is a dual pattern, who cares if the head has the LA bolt holes, use the Magnum ones in the intake. Just really confused.
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The OP has a old LA Offenhauser intake that he wants to bolt onto Magnum heads. That old intake doesn't have bosses for vertical bolt holes so the heads must be re-drilled to make it work. The Crosswind intake the guys are talking about has bosses for LA and Magnum bolt holes. (bosses for fuel injectors as well)