Stand at the front of the car.
The engine is numbered as follows;
No 1 is on the left closest to the Belts, it is numbered 1, 2, 3, 4. No 4 being closest to the Dizzy.
Place all your plug leads on the correct cylinder number, Then place the plug leads on the corresponding number stamped on your Dizzy cap. The firing order of a KA24DE is the same as the KA24E, 1, 3, 4, 2. The Dizzy is marked as such.