[woodsnake]

#2 son bought a 78 Ford F-150 with the 400 engine, and we'd like to help it work easier.I'm thinking in my head that a 351C-M-400 are all the same fit.Is that correct?

 

[cj750]

351M/400 intakes are the same. 351C is narrower.

 

[CougarCJ]

I believe that you are correct.

I have a used Weiand 8010 intake manifold for sale - $75.

 

[woodsnake]

That PN shows it fits for a 351M/400. PM sent.