New to site, with question

Looking for serious advice regarding restart of my 1972 340 Twister, rebuilt the engine 17 years ago, had about 1500 miles on it. I got married had a baby girl and parked the car. I want to give the car to my daughter. I am about to try and restart my baby blue. Ive owned this car 31 years and she was 90% restored when I parked her in the garage, I tore into her today to replace the water pump, belts hoses...Im thinking about Marvel Mystery Oil in Cylinders for a week or two, but concerned about spinning bearings....suggestions welcome.....
Author: SgtLee511