340/360 Drivers Exhaust Manifold ID?

None of those numbers on that tti list are for anything 70 down in an a body. The first two aren't even A body numbers, they are B/E manifolds.

Anything with a 38 beginning number is going to likely be later than 75 for fit. B drivers side don't usually play well on A body cars.

Pictured in the TTI is the B body style.

This is an 67-76 A body style 340-360 driver side. The steering column is an issue and addressed.

View attachment 1716062404

Your picture is of a ’72 and later drivers side A body 340/360 manifold. The ‘68 to ‘71 drivers side didn‘t have the extra casting/ears up top for the stove pipe mounting.