Put some Marvel Mystery oil in each cylinder a few weeks ago, turned engine by hand. Started to today after only a little cranking. Sounds pretty good, has alittle tick. Surprised how good it idled, no smoke.Advice on what to redo, oil pan has leak so going to pull engine, going to check compression before pulling. Advice on what to redo, heads, water pump, belts, hoses, what are your suggestions if compression checks out. Tried to show video running but wouldn’t let me.Thanks