455 DynoTest Part II - The Devil Is In The Details
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The next step was to try a 1-inch Wilson tapered four-hole carburetor spacer. Jim Taylor decided to go back to his Holley carburetor for the spacer test since the fuel curve was more aggressive than the untuned Demon (we only made a jet change). Wilson claims its spacer will lean the engine out slightly, and since the Holley had No. 83/No. 80 jets, there was plenty of room for tuning with the assortment of parts we brought along. View Related Article
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