Great performance with 3.75 to 3.875 stroke with AFR heads

or heads with a 75% I/E ratio. Can use with up to 250 Shot of

nitrous. Recommend using a 1.6 Ratio. Use our 11600 Rocker

for AFR heads for best geometry. Needs minimum of 2800

stall. Max HP RPM 6000.

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SBC Hydraulic Rollers SBC234-238-12

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