3K rpm is a perfect shift point, but only for semi-aggressive driving, say you want to hear that nice exhaust set up you got without going full d-bag. BUT it will eat your milage. I got 13-14 mpg city driving like that lol.
2K-2.5K is perfect for just regular normal driving, and it'll keep your rated 19/30 mpg. To me, shifting at that speed sounds GLORIOUS with my Pypes. I let off the gas a bit before I shift and I get that orgasmic gurgle from the exhaust that the 5.0s have.