You have a 60 235 for your truck. You really should use the later 55-62 intake and exhaust set up.
Hey Mike - I have three intake manifolds. One that was on my '46 216. And I had two 235 engines. I found this other intake in my storage shed. This one has a tab on the front part of the intake and the vacuum port points straight out. The one I currently have mounted has no tab and the vacuum port points a little to the rear. Do you have a casting number that would be for a 1960 235? I believe one of these came off the 1960 235, but I'm not sure which one.