Next step for more HP (383BB)

Well, at least you don't have to (expensively) refill a supercharger or a turbocharger.

Nitrous makes power that is not due to a superior mechanical design. You can put it
on a piece of garbage and make it run fast (until you blow it up).

I will never give any creedence to the performance of a machine enhanced by N2O.

JMHO.