Big Block MPG

I honestly have no idea what jetting it is. I want to say it’s whatever the factory put in a 383 67 barracuda Carter but I don’t know if someone played with it over the years. It does smell rich and I got the car running after years of dormancy and did nothing to the carb other than hose it down with spray cleaner. I’m still somewhat amazed that it doesn’t leak. The choke doesn’t work and one day I found the linkage screw for the accelerator pump sitting on the manifold after I’d been driving it for a bit. I do intend to pull it out and have it gone through by a shop but I haven’t gotten there yet.

You'll pick up a lot with a full carb rebuild and tune, if your carb is in good shape. Do you know if it's an AFB or AVS Carter? Either one is pretty straightforward to tune, the AFB more so since the secondary opening rate is essentially non-adjustable.