Pn 20080130 Bare ones roller cam 87+up LT1 Lt4 Application .503 int .503 exhaust duration at .050 219 /229 Adv 276/288. 108 center line. 112 love separation. it,s in great condition has 600 miles of use. Comes with cam card and box. You pay the shipping cost. Front pin has been cut to use with a standard dist setup. Pictures available.