I've got a 47 Coupe-which I have now determined has a 54 Motor in it according to casting numbers. 105 lbs compression across the board. It ran like crap. I replaced points/plugs and wires-it got a little better. Stuck a kit in the Rochester B and it ran a little better. Timed it by vacuum-max reading-and got best idle but lost power on road. Timed it today with timing light against peep hole and it runs even better but still bogs down in third when trying to accelerate. I've determined I have a 46 style distributor in it which has the smaller cap/rotor button set up. I've located a 54 distributor which I'm cleaning up and plan to install with new vacuum advance, Can anyone tell me if counter weights-advance will be better with the 54 distributor-or just what the differences are in these distributors? Catalogs seem to reference 53/54 distributors as being unique to those years. I hope it will run better as It is what should be in the car-so I'm hoping for an improvement. Also-my motor has manifold with heat stove for automatic choke. I plan to rebuild a Rochester BC carb that came with car and install it. The carb may of come off a 54 car with automatic transmission-would that be a problem?. I plan to rebuild this BC carb and try it also on the car. Can anyone tell me main differences in distributors/carbs from the 46-48 style to the 53 style? has anyone tried a Pertronix and if so-could you tell a difference? Thanks a lot
