Used for 3000 miles before switching to a custom grind blower cam and is in like new/excellent condition.  This cam helped produce 594.2 horsepower and 649.3 ft/pounds of torque on an engine dyno and 501.13 rear wheel horsepower and 481.13 rear wheel torque on a chassis dyno in a 2006 Pontiac GTO/T-56 (416 stroker, AFR 215 cc heads, FAST 92 mm intake, headers, exhaust, etc.).   Cam specs included in pics.  Serious buyers only.  I will not answer technical questions.  Respectfully, please do your own research on lifters, springs, etc.  Cam is priced to sell.  No returns.