Cleaning the plugs won't make it not start! you must have done something else wrong like put the plug wires on wrong,the firing order is counter clockwise,go back to the original coil,I owned a Foreign Auto part store for more than 20 yrs and its never the coil,now that the plugs are gas foweled they won't fire either,so replace the plugs also. The best way to check a coil is pull the coil wire from the dist. and hold it about 1/4 inch away from the block and snap the points open with you finger,it should fire the coil. Richard