Hi Tim, Thanks for responding. The motor is a 56 235 I Was given an intake from an unknown year. From the info you gave me I suspect it is from a 54. I have the duel horns from what I think is the original 56 motor That replaced the 216 that was in the truck. It looks like I will just have to keep my eyes peeled for a 53 and earlier manifold. Thanks again, Jimmie.