Maybe don't get your hopes up for that Z06 just yet.
If there is one living person we can safely say understands the importance of horsepower, it would probably be John Hennessey. He has released the following video of what he says to be a talk on the state of the aftermarket. That's maybe a slightly vague title for a talk which is entirely about the C7 Corvette, but we aren't complaining. Hennessey is saying things that any serious potential C7 buyer needs to hear.
There are some harsh truths in what he's saying about the Z06, but it's probably best you hear it now, before you go ahead and buy one.