Product Description Specifications Use in 396-427c.i., heavy car, 3500+ stall and 10.5:1+ compression. Excellent for jet boat, A or B impeller. 427-454c.i., 10:1+ compression. CARB: This product is not CARB Legal and not for sale in California Category: Engine Components>Camshafts Core: N LTL: N MPN: SK11-604-5 Proposition 65: Y Special Order: Y