[Rev]

With the cam you now have, I would think you are about the max you want to be for a street driven 289. I assume we're talking flat tappet hydraulic here.

The most common mistake is having too big of a cam for the engine, or too big of a cam for the application. That's commonly called the "bigger is better" error. That's what the cam guy was referring to. I personally would not go bigger than what you have now unlless you are building a track racer.

Rev