If you feel too stretched out, why on earth do you have your saddle slammed all the way back? This effectively makes the top tube longer. Did you arrive at this position by plum bobbing your knee, or is it just something you prefer?
EDIT - ok I missed your post. Controversy aside, I'd suggest bobing your knee position first to get a correct starting point if you haven't. It may be that you need a bike with a slacker seat tube angle.
Anyhow, the frame size indicates a typical 70s to early 80s fit, assuming your saddle is at the correct height. It probably seems weird to you if you are used to modern bikes with long seatposts. 56 would be a bit more ideal for a race bike IMO. To some degree it's a matter of personal preference and what works for you.