M1 SP vs Air Gap

Locomotion said

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The Edelbrock Air Gap dual plane will not bolt on to W-2 heads unless ports and bolt pattern are modified.

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Sorry got mixed up on the intakes, they were single plane manifolds for the w-2 heads. On the same hand I just thought I would share what I have learned and seen over the last 10 years of engine building and the differences in hp an intake can have.