The old cam was custom grind from the shop who orginal that did my motor. It was a nitrous grind cam orginally.. .the new cam came from FTI and produced more overal HP and TQ.. not a huge difference at the top but if you look at 3,000 to around 4,500 the FTI cam produced a good amount more low end power wich is what I was after with this heavy car... It went 12.07 befor with old numbers so hopefully id see some 11s this time.. Need to lighten my car tho 3,605lbs with me in it.