What motor is this?

[TopSpin80]

Ford, Chevy, Olds, Mopar?

I have been told it is a 460 Ford, I think that is wrong because the distributor is on the end with the transmission and Fords are on the belt side.

I don't think is is an olds because the heads on a 455 have the center two exhausts on each side exit close together in the picture I have seen.

I don't think the distributor is right for a mopar.

I figured I would ask the experts here on the board.

Thanks,
Ernie