[Steeveedee]

I had a '66 Le Mans with a 400 (not original) Ram Air III that had one of those glass filters that never seemed to be full of gas. It turned mid-13s in the quarter mile though, so I quit worrying about the glass not being full. I'd recommend going through the fuel system and eliminating potential problems like pinhole leaks and clogged socks, just to cover all the bases, though.