You have the name wrong, it's Marvel's Mystery Oil Good stuff, buy a can of it and use that in the cylinders, it'll burn off quicker than straight 30W and still do it's job to lube the cylinders. When you fill the crankcase with oil, use your favorite motor oil, but pour a quart over the head/cam, etc. before putting the valve cover on and finishing it off.

For the fuel injectors, if you don't get any fuel, you'll need to pull them and soak them to free them up, otherwise, run a can of outlaw fuel system cleaner in your first 4 tanks.