I agree with fordman. There is no way that i know of that a single barrel carb would bolt onto the 455 intake. Take a closer look at it and you may find its a dualjet. A few of the older models looked like one barrels. As for the motor, Take it! The 72 Deltas were nice cars, and if its clean enough I would restore it. The 455 in it could be made a screamer with a head change and a 4 barrel intake.