Throttle cable/gas pedal issues - holley on a 318

Ah sorry, forgot to mention that yes...I do have the 20-7. That helped get it a lot closer than without it of course, but it's still not quite right. Plus it only has one hole in it...is there supposed to be another hole for the kickdown hookup? I was not aware of this. Mine only has three holes in the entire adapter. Two for mounting to the carb lever, and one for the throttle and I assumed everything else.

Unless the carb is not meant to open to a hard stop WOT, then something is not matching up. It just has to go a little bit more. And when I push it manually that last bit, the butterflies open a little more to the vertical position and the pump shooter drips out a few more drops of fuel. Seems to me it should go but I'm out of adjustments up in the carb area. That's what's leading me to the gas pedal side of things but I've not heard of anyone else having to do modify their factory original gas pedal setup.