If you have the capacity to do so before setting out to drive your new ride home, turn up the cruising AFR to as high as you feel comfortable doing so without overheating the heads. You'll need a pretty good infrared thermometer to do this. It won't be a perfect indication but just shoot it at the head-to-header connection on the exhaust header to get an idea of how hot the head is getting. With better instrumentation and some experimenting, you can maybe lean it past peak temp for some ersatz "lean burn" performance, but it's hard to do on the fly with a carb, obviously.
Also worth considering: did the PO update the valve seats? If not, get some lead substitute so you don't pit the valve seats. Man, that stinks when that happens.
You might want to fill your pockets with a few bits to ensure the carb's fitness for a long trip. These guys carry a bunch of Carter repair parts:
Carter Carburetor Parts
When you get home you might want to consider swapping carbs to something considerably more modern and tunable.