I realize that he meant engine displacement. I meant: "yes, larger engine, but hardly larger supercharger."

I will explain myself better: Before the C7 Z06 intro, I might have said that I didn't think a supercharger that small (1.6, 1.7 range) could move enough air to make 625 HP. But now Chevy has proven that it can. That's a lot of air, and a lot of supercharger RPM. Trying to make 625 HP with a supercharger that size and a smaller engine only complicates matters with the subsequent higher pressure ratio, inake temperature, cylinder pressure, stress on parts, etc.

But still, 330/349 HP and 625 HP are worlds apart, and I was saying we ought to be able to get closer. I meant it as much as motivation as for technical arguement.