New Member barn find Demon 340

Hi guys, just started cleaning up my 71 Demon 340 that I found literally in a barn. The car has 27,000 miles on it and has not been cranked since 1974. The interior is in good shape and like the rest of the car needs TLC. There are no rust issues and with the exception of where the top meets the quarter panels on both sides the paint is OK. It is B5 blue. I have removed the plugs and I have filled the cylinders with Marvel Mystery oil. I have not tried to turn the motor, hope it is not stuck. This will be a project that I will take my time on. This is my first Mopar. I also have a 74 Hurst Olds W-30. I am sure I will be asking questions as I work on this car.