Innovation & Affordability: looking back over 25 years in the high-performance aftermarket, the PROFORM� line was the first to popularize affordable and 100% NEW (as opposed to "rebuilt") starters, alternators, stock harmonic balancers, and distributors; the first to offer the 2-Pc timing chain cover, the 2-stage in-line fuel filter, HEI distributor tune-up kits, and direct-replacement carburetor main bodies; the holder of the patent rights to elegant, corrosion resistant battery hold-down J-hooks, Slotlok(tm) wire dividers which require no screws, the no-mess oil drain plug, the fast one-piece drop-on valve cover hold-down, the easy-to-install harmonic balancer cover, the handy and universal No-Mess Funnel, the space saving Socket Assist tool, an adjustable billet timing tab with built in LED Timing Light, and design patents for the innovative Slant-Edge and 2-Piece valve cover designs. You'll also find a line of roller-tipped rocker arms offering you the widest selection of manufacturing processes (stamped steel, cast chrome moly, and machined extruded aluminum); super-slim and updated tachometers; a whole line of popular and easy-to-use engine builders' tools; and a broad line of GM Officially licensed chrome parts bearing the popular Chevrolet� and Bow Tie� and other divisional trademarks, and NEW in 2010 Ford� Racing�, Mustang�, and Cobra� engine dress-up parts (sold under the PROFORM� Factory Performance&trade Parts designation).