You have the same problem that I inherited when I bought my ‘52 3100 with a ‘59 235. My engine also came from a car with the linkage from the same. I bought a used linkage, from the gas pedal to the carb. I don’t know what year, but it matched what is shown in the Assembly Manual. Unfortunately none of the linkage from the car was correct necessitating replacement of it all. There is an excellent write up in by a fellow “Bolter” chev235guy about the alternative pivot point used on the truck.
[Link]The pictures are from my engine with the proper linkage installed (except the linkage to the pedal. I included the Assembly Manual page I got my info from to buy replacement parts.
In the pictures note the round head screw. I found that in the alternative position and swapped the pivot for the screw and reinstalled the screw in the old position. Unfortunately access to that area is tight. I found it was easy with the removal of the intake and exhaust manifold.
This info assumes that the Fenton manifold does not block any portion of the linkage.
