To find how steep the ramps on the cam are(which tells you how fast the valves open) you subtract. Two things you should know: that cam, according to the replacement manufacturer, is ground on a 115* LDA - and also, it's seat-to-seat timing indicates 312*.
I have a 327 that originally came with that cam - and the literature published back in 1966 when the cam was new rates peak power at 5,400 RPM. Your profile mentions a 305 - and I'll presume it's a carbed car.
