Re: Which Carburator on a 56 Clipper Deluxe?

Posted by Ross On 2010/4/27 22:03:06

Those screws, under the bowl of the carb and angled one to the right and one to the left are only for adjusting the idle mixture. If the car idles smoothly and passed its CO test you can leave them alone. Otherwise turn them a little bit at a time to achieve the best idle.

They won't do anything for mixture above idle speeds though. That mixture is determined by the metering rods. Those can be easily set with the carb on the car per the service bulletin you mentioned. If they are out of whack you can use up a lot of gasoline. My 56 Super--with the same engine and carb as yours-- does exactly double your mileage on the country roads around here. But I have almost no "stop and go" driving.

I forget, did you set your timing with the vacumn line to the distributor disconnected (no need to plug it) and the car set to SLOW idle? That can make a world of difference.