Reply to "Questions regarding George's 275/285 Custom Street Cam Profile"

That's interesting.

It seems like a free breathing motor like a 351c would continue to spin and suck air through until effects like valve toss and inability to control the valve train impose a physical limit (which can result in damage) to the engine, and that is what I was asking about...

But now I am seeing reports that cams / engines are "all done" at 5x00 RPM.

As a fluid dynamics-type question, what are the primary effects that would limit an engine before physical valvetrain damage? Just inability to flow enough air?

It would seem that 300 CFM still is healthy, and power ought not "drop off a cliff".

But what do I know?

Thanks

Rocky