retro/fish suggestions

I'm 175-180 lbs and currently ride a 6'6", 19.5", 2.5" "short"board. Now I'm looking for a retro/fish-type board for 1 to 4' (faces) waves that's smooth and fast (down the line, as opposed to turning). I'd like this board to float through the flat sections and smash through bumpy sections. I'd also like this board to paddle faster and catch waves better than my "short"board. Any suggestions for board dimensions?