I run well in the 220-230 range myself. could go higher, but I figure why; has plenty of power.

decide if you need to wring out a little extra power from it or not.

I personally favor an extra gallon of life from the engine over a bit of performance. if I was rich or a hardcore racer, Id think differently.

of course if 220-230 leaves it downright sluggish, then do what you gotta do to make it run well.