MadBum has, to date, faced 980 batters, with a FIP of 3.12. Sounds impressive, but Dave Cameron pointed out that he plays at AT&T, which suppresses homers, making his FIP look better than it should be. Apparently, 3.15 just isn't that impressive.
Well, here's a list of all of the pitchers with a FIP of 3.27 or better in their first 980 BFs as a starter, out of all MLB pitchers who debuted in the last 60 years, together with the year and their age when they reached that point:
Disclaimer: in this post, I am using the basic Tom Tango formula for FIP, one that doesn't adjust for ballparks etc. That's simply because I don't have that sort of information in my database. As a result, my FIP differs from, say, Fangraphs FIP by +/- 0.1: I think that's a pretty decent approximation. Every Giants pitcher with a decent SS I checked differed by less than 0.05.
Disclaimer 2: Age is calculated by deducting the year of birth from the year in which the 980 BF point was reached. Look, I'm lazy.