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Valve Spring Technical

STREET PERFORMER HEAD LATE (SINGLE SPRING)   INTAKE EXHAUST ROCKER RATIO SPRING HEIGHT 1.600 to 1.630 1.600 to 1.630 1.45 TIP HEIGHT 1.870 1.860   SEAT PRESSURE 70-75 PSI 70-75 PSI   GUIDES HONE TO .002 CLEARANCE     SHIM Varies .030 to .060     CAM EFI Pro & Street Preformer list 440int. 440 exh. 230 @ 0.050 Duration         PRO HEAD (DOUBLE SPRING)           INTAKE EXHAUST ROCKER RATIO SPRING HEIGHT 1.620 to 1.630 1.620 to 1.630 1.45 TIP HEIGHT 1.915 1.915   SEAT PRESSURE 100 PSI 100 PSI   GUIDES HONE TO .002 CLEARANCE     SHIM Varies .015 to .060     CAM PRO SERIES CAM             Tip Height INTAKE EXHAUST   Stg.2 1.870 1.860   Stg.3 1.870 1.860   Stg.5 1.915 1.915

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