Thanks for the replies, I'm unhappy with the power the car has as it doesn't seem to have any get up and go, but I realize that can be many other things than the carb. It might also be how it was set up and tuned.
When I first got the car, and when it had the Carter it had a real radical cam and it would throw me back in the seat when I stepped on it. Unfortunately it had a real rough idle and was unreliable as far as starting etc. It still has the GM HEI on it that was there when I got it, but I swapped the cam out for a milder 066 and put the E 4106 on it for reliability and the electric choke.
Sounds like maybe I need to have someone check that the Carb is set up properly and tuned properly before I think about switching back to the Carter as it is not original either.