Product Description Specifications Performance cam for street machines. Lower axle ratio and 2500+ stall with headers. Rough idle. Magnum Muscle Camshaft for 289c.i. 1965-68, factory 271 HP. CARB: This product is not CARB Legal and not for sale in California Category: Engine Components>Camshafts Core: N LTL: N MPN: 31-334-4 Proposition 65: Y Special Order: Y