Miata+4g63+T56=awesomeness!

[Pushit2.0]

I would knock down that 9000+ by at least 1000rpm. You can not have your cake and eat it too, any setup that will make street able power should not be reving to 9000rpm+. If you have full boost before 5000rpm there is no reason to want/need to rev past 8500rpm. If you are looking at a 50trim, then plan on shifting around 7500rpm, a 35r is a lot bigger and will make/hold power to about 8500rpm. I am basing these numbers on a 2.0, if you have a 2.3/2.4 then knock the rpm down again, by about 15%.

~John