i have a 1972 f600 I think it came with a 330. But it has a gov holly 4 barrel, also has ribs on the bottom of the block, I have been told only 391 has that. Here is the vin can anyone help.

F61dcm61700
156 F615 238 M e2d

24000 164 3800 215012

 

You posted this same info in 1967/72 forum. I decoded it there.