Do you have the Rochester carb ,my 54 with a newer 235 has the throttle linkage by the frost plug .I have a spare 235 engine also 1958 era and it has the throttle pin still in it but it is in the hole that is plugged on yours .my linkage on mine goes straight up and lines up with the carb.I know the older trucks had a different cone t to the gas peddle.
