17 Stroker 390 Dyno Test
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12 This is Holley's new Ultra HP 950-cfm carburetor, which may seem like a lot of carburetor, but remember this isn't a 390 anymore. Displacement is 442ci along with an aggressive hydraulic roller cam, induction, and heads. Dyno time will begin with generous jetting to play it safe, then go leaner with each pull until power falls off. View Related Article
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