COMP Cams® Hi-Tech™ Roller Race Timing Sets for GM LS Applications allow engine builders to tailor engine performance to their specific needs with a nine-keyway crank sprocket offering eight-degrees maximum advance/retard (16 degrees total). With nine adjustable cam positions in two-degree increments, the COMP Cams® Hi-Tech™ Roller Race Timing Sets for GM LS Gen III/IV applications are single chain, full roller timing sets that offer an excellent performance upgrade from stock without breaking the bank. Featuring a cast iron camshaft gear and induction hardened steel crank sprocket, these durable timing sets are dynamically balanced and quality checked for run-out tolerances. The single chains have been pre-stretched and heat-treated to avoid further stretching or breaking. For more info, contact COMP Cams, 800.999.0853, www.compcams.com.