Manifold Swapping for Roots Blower - 134 HP With One Bolt-On!
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The 174 is designed to fit around either the factory large-cap distributor or the small-cap aftermarket jobs. For this test, we used the MSD billet distributor that includes the steel gear you'll need for the Boss roller cam. All the tests were run with 32 degrees of total timing on 91-octane pump gas. We recommend using the fastest timing curve available and having it all in by 2,500 rpm. View Related Article
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