Hi, new member, great site. A ton of info here that has helped me in the past.
I recently got 2 old intake manifolds, one I have found information on, a ECZ-9425-A.
Also got a EOB-8426-B, also a 4 barrel intake. Have searched but come up with nothing. Any one have info on it? Thanks

 

Your ECZ A is a 1956 and earlier manifolod using the old syle 4V carburetor. Not compatible with later Holley or Edelbrock square bores. On the EOB manifold, does it have stacked intake runners like the '56, or side by side?

 

Hi, cleaned up the numbers again and it's actually ECB-9425-B

 

hi, that's probably a 54 merc. or ford police intake. i'll bet it has a mount pad on the side for the choke, 54 only. hope this helps, wayne.