Great cam! My 72 Demon ran 11.80 at 115 with this cam. Engine was basically a stock 71 340 with stock intake, TQ carb, steel crank, kb pistons, unported heads, with a 904 trans/stock OEM 318 convertor and 4.30 gears. Tire was a 27" slick with TTI headers and full exhaust. Sorry I changed the combination....will probably change back. Cam was a .474 hydraulic with with only .030 travel in lifter with adjustable rockers.