Tpi 355 Machine Work Tpi Stud
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Bob spent many hours re-contouring the bowl and combustion chambers of the Vortec casting. Much attention was paid to increase low-lift flow on both the intake and exhaust ports. The combustion chamber work was centered on increasing median burn velocity without disturbing the high level of mixture motion, and thus, octane tolerance the Vortec head is known for. View Related Article
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