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Competition Cams 11-600-20
Thumpr NIT 227/241 Hydraulic Flat Cam for Chevrolet Big Block 396-454; High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle. Nitrided.
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Competition Cams 12-600-20
Thumpr NIT 227/241 Hydraulic Flat Cam for Chevrolet Small Block; High performance street, stock converter ok, best with 2000+ converter and gears. Choppy/thumping idle. Nitrided.
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