Competition Cams 2100 Magnum Double Roller Timing Set for Small Block Chevrolet<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Feature induction hardened cast iron camshaft gear and billet steel crank sprocket</li><li>3 Keyway crank sprocket for 4-degree incremental adjustability， 4-degree maximum advance/retard</li><li>Heavy duty， heat-treated true double roller timing chain; chain available separately</li><li>Ideal for mild street performance applications</li></ul></div><img src="http://ecx.images-amazon.com/images/I/412WREMwIvL.jpg" noproxy>