Hey Bob, congrats on the purchase. Glad to see another p15 in The UK, you’re in good company and should get in touch with Robin Weathersbee if you haven’t. He’s got a great event coming up which gathers the p15’s over there for a fun day of pictures and touring.
I am curious about the serial number on your car. I too have a ‘49 sedan and have been searching others to see if anyone has a serial number newer than mine. My car was 4,030 units from the end of production according to production records.
As to your question about the carb, can you confirm that it is a Carter D6G2