comp cams rocker arm, magnum roller, steel, 1.6 ratio rocker arm '88+ for chevrolet sbc w/ 3/8 in. stud

One way to increase power is to increase lift. That's what makes COMP Cams Magnum steel roller tip rocker arms so popular. They're one of the highest lift rockers you can get outside of racing. And, along with the lift, you also get a ball pivot roller tip to prevent valve stem and guide wear.