I overlooked checking the carb # on my 1970 455 motor. I've been wondering for a long time why I can't get the expected power out of the 455. Appearently the carb is off a 350. The motor only had 23k miles on it when I bought it so I ASSUMED, it was the original carb. I was wrong. I've seen posts before on someone who sell Q jets to the specs of the motor. Does anyone know who that is? Thanks for your help.