Holley or Edelbrock carb

20 hp more for a Holley?!? Compared to a 2bbl perhaps, but a properly setup similarly sized carb will deliver similar hp, mpg and ET #'s. If you want a carb that will stay shiny and not leak go for the Eddy. I like the green of a plain Holley so I wouldn't spend extra for one of the shiny ones. If the car was to be a cutthroat bracket racer (and I couldnt run fuel injection) I'd run a Holley because it is easier to tune at the track. If the car was mostly street driven and I wanter to "jet it, set it and forget it" Edelbrock/Carter AFB hands down.

Now, the above being said, I wouldn't go out and spend money on a new Eddy if I had a Holley 1850 or 3310 gathering dust on a shelf. Any of the above should work fine for your combo with some basic setup.