Carter bbd

Demonic said

This. The height difference between the early and later, about 73 and up maybe (?) and the 72 and down pictured is significant.

Click to expand...

Here is a 1970 318 2bbl single plane intake manifold.

It measures 4" up from the lowest point below the thermostat area, (the china wall sealing area of the block to the manifold), to the flat carburetor mount base.