Magnum Exhaust Manifolds in an A Body

Personally, I don't want to give anything up I don't have too. So, if it were me, I would run a 340 DS manifold and an early Jeep PS manifold.

The DS 340 manifold is cheap(er) when compared to the PS free flow since they made the same DS manifold from '68-74, but the good PS manifold was '68-70 only (I think). And the big outlet Jeep PS manifold supposed flows just as well as the 340 free flow manifold.

And if you look for a '71-74 DS 340 manifold, they should be cheaper than the '70 down ones as they have a flange for the heat stove and are less desirable and thus cheaper. At least I think the flange started in '71, might be '72.

I understand not wanting headers, but no reason to leave ponies on the table if there is a reasonable option.