Too much carb?
The secret to a big carb (Or any dang carb) is to be able to tune it. If this is a street car, the larger the carb gets over what it needs or could comphortabley use, smaller carb, the harder it is to drive on the street.
Like they said above, if you have a good high stall verter and a set of gears, run it, tune it. Have fun!