Frame too short - remedies?

I think you must have a very long body and/or arms. Frame doesn't look like it has been made with a short top tube in relation to other tubes and it doesn't look much wrong from a seat tube/head tube perspective.

Too much seatpost showing too if you ask me. If you consider it to be a standard square track frame (seat tube and top tube same length), then could add 3" to the seat tube and still have a fistful of seatpost showing. This would of course give you 3" more of top tube or say 2" more reach with a 110mm stem, and less set-back on the saddle. If your upper body is indeed long, then you could go for more standard road geometry and have a longer top tube. Then you'd be looking at 3" extra reach with a standard set-up.*

To put it into perspective most framebuilders size in 1/2" increments. ie. your frame is something like 6 fecking sizes too small. Sorry, but this bike will never fit correctly, it needs changing.

(*guesses based on little info)