![54-311-11 262 [4.3L]) Thumper NSR Stage 1](https://cdn.shopify.com/s/files/1/0600/0115/7252/products/54-311-11.jpg?v=1663676583)
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Thumper NSR Stage 1
Thumper NSR Stage 2
103 mm Throttle Body Flange
Duration 260 / 260
108 in Wall
54-311-11 262 [4.3L]) Thumper NSR Stage 1by COMP CAMS Camshaft, LST Stage 1, Solid Roller, Lift 0. 672 0. 668 in, Duration 274 288, 111. 5 LSA, 2800 7500 RPM, GM LS Series, Each
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