1965 Valiant

If it's been sinking into a field since 1976 I'd check the frame for rust rot. pull the seat and carpet too and examine the floor pans. That engine looks rough... I'm afraid you may need to pull it and overhaul it. Keep in mind that 4-dr. early Valiants are hard to sell and cheap to buy. You may come out ahead using this one as a parts car. It's a noble-looking little car, but it needs lots and lots of TLC.