So I have a 54 chevy with a 57 235 in it. The car had a HEI distributor installed by the previous owner. Other than that it appers stock. The car ran amazing when I first purchased it, but slowly started to have issues with the carb. The carb was clogged up horribly, and the plunger was shot. I rebuilt the carb and the car did now start much easier, and run better when being put under a load. When I am just crusing at any given speed like say 45, the car has a hiccup you can hear and feel. It's very mild but still enough to drive me freakin nutz. It becomes more noticeable once the car is fully up to temp. I went ahead and changed the plugs and wires thinking they might be the issue but that made zero difference. Could the misfire/hiccup when crusing be a float adjustment issue? Thanks in advance for any input guys!