Solid: Good for 350-400 on Big 3/8 to 1/2 mile tracks with high sustained RPM. Best with Big carburetor and good intake. SBC - 1955-57 models have an oiling groove in the rear journal. The listed part numbered cams will not fit these models so if you require a Camshaft with the oiling groove please call us at 1-800-999-0853 or contact us and we will assist you with placing an order.
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