We have just added more new product to our online store such as: Adjustable timing gears for both Cummins, and Duramax, Tool Steel Camshafts, Cummins Camshaft Retainer, and Cummins Roller Camshafts. Also watch for an update on our new Cummins 12v roller rocker kits in the next week. We will have 1.7, 1.75, and 1.8 ratios in stock. We also will offer custom ratios too.