Engine Masters Insider
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Realizing the Performer RPM intake was restricting the powerful 410stroker, we brought it over to Extrude Hone for porting. We know of nobetter way to attack the long runners in the dual-plane intake than withthe pressure-fed abrasive media used in the Extrude Hone portingprocess. Our hunch was right in that the Performer RPM intake(originally designed for a mild 351 appli-cation) was indeed restrictingthe 410 stroker, as the Extrude Hone porting unearthed another 14.7average points. View Related Article
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