Dear Rusty;
That's right. Unless highly modified, 3 carbs is to much carburation.
Two 1 bbl(s) is the most common setup for those. They look nice, don't cost much and arn't to bad on gas mileage.
The best way would be to find another head & rework it and then install it with the "2 pot" & headers.
Good luck, John M.....
