Thanks,

I really appreciate the advice. this has been a fun truck to get back on the road. It belonged to my father in-law. My wife remembers driving it as a kid helping her dad hay. Lots of family memories for them.

You might check the classified posting Charlie and Tim may have what you need

I thought I just read recently where the 256 merc manifolds were EBV's and the ford 239's were the EBY's, so that may rule out coming from a 54 Merc and may be an early Ford manifold. Unless I got this backwards. What color was the manifold? that may give some clues.

I have a strange manifold with a 2 Barrel Teapot holley and the smallest 4 bolt carb pattern I have ever seen. I don't know if there was ever another carb made to fit this manifold. Maybe its off an industrial application? I'll gets some pics.

55 Vicky & customline

58 Rack Dump, 55 F350 yard truck, 57 F100

59 & 61 P 400's, 58 F100 custom cab, 69 F100, 79 F150, 82 F600 ramp truck, 90 mustang conv 7 up, 94 Mustang, Should I continue?

Billy.  What you describe sounds like an early truck intake that used a Holley Teapot two barrel carb.  Looks to be the same bolt pattern as a Rochester two barrel carb.

Lorena, Texas (South of Waco)

The only 4 barrel '54 Fords were police interceptors, and hey had Merc 256s in them.  If it's a 4 barrel manifold, it has to be Merc.  Small ports, regardless.

John - "The Hoosier Hurricane"