rottenchester carbs

My 71 duster with a 318 had a rochester 2 bbl on it from the factory. In the motors they even had spechs for it. It ran ok and never gave me any trouble.I put 100,000 miles on it and then cut it up 'cause of the rust. the 318 lives on in my 65 cuda,the rochester lives on in a 67 valiant with a 273 I restored and sold. It ran good on that motor as well.