a '67 Plymouth - I love it!
Here's something you definitely want to do. Don't start that car on the old gas. (Maybe you've already done this but . . . . ). Drain all the gas from the gas tank, (it will stink real bad as it's three year old gas). One easy way to start the car on fresh gas is to remove the fuel line from the fuel pump and run it into a gas can, (or to do it right, remove the gas tank, clean it out, fill it with fresh gas, let it run through the fuel lines, etc.) Obviously, working with gasoline, you'll need to be very careful, no smoking or playing with fire. The gas that's in the tank will have a ton of varnish in it and you don't want to be pumping that into your engine.
Secondly, pull the spark plugs and pour a little Marvel Mystery Oil in each plug hole, let it soak over night, or even a few days for that matter.
Third, check to see if you have spark, are your points dirty? Are they set properly? How about your ignition wires? Cracked? Broken?
Air intake - any critters make their home in the air cleaner or around the carb in the three years car has been sitting? You'd be surprised how homey an engine compartment can be for some.
The ulitmate question, (if you can find out), why was the car left sitting and what condition was it in when they parked it? Running? Kind of running? Died so they pushed it to the backyard? That's will help you figure out what you need to do.
Good luck and keep us posted! I always thought the '67 Plymouth was a cool looking car!
Hey, what size is the motor? 318? 383? Or, (be still my heart), 440?
The ulitmate question