VALVE LIFT ON A B303 CAM IS 480 ON THE INTAKE AND EXHAUST SIDE WITH 1.6 ROCKERS.LIFT WITH 1.7 ROCKERS WOULD BE 510 LIFT ON BOTH SIDES.I INSTALLED ONE YEARS AGO AND HAD PROBLEMS WITH THE IDLE.IT HAS A FAIRLY ROUGH IDLE OR CAM LOPE TO IT.YOU CAN BUY A PART CALLED AN IDLE ADJUSTER PLATE THAT GOES BETWEEN THE THROTTLE BODY AND IAC SOLINOID THAT WILL FIX THE PROBLEM IF YOU GET IT INSTALLED AND CANT GET IT TO IDLE CORRECTLY.IT MAKES THE MOST POWER BETWEEN 4000 AND 6500 RPM.
not going to make much power past 5500 with stock heads and intake. you will see a slight gain with the cam but the stock intake is very restrictive. if your installing the cam just for the lope sound, by all means go right ahead, but id recommend an intake/head swap if you plan to get any power out of it. IMO,there are many better cams available, bcams are very good for boost from what ive heard but they are a fairly mild cam and pretty close to stock specs.