Dad taught me that the cover off a match book will set the points pretty close. Funny the little things you pick up over the years, bent over inside the engine compartment of your vehicle.
Back when I worked on cars, I always said that they needed to make the designers and engineers have to WORK on a vehicle they designed...Not a fresh one off the line, but one that had 50,000 miles or more on it. Make them figure out how they are going to adjust the timing when it is scant inches away from the Fan. Or change the spark plugs when you can't even reach the plug wires from the top, you have to go through the gap in the fender. They would think twice about trying to put 100 cu feet of junk in a 10 cubic foot space.