still trying on my spare time to diagnose my no spark condition to my 78 srx440 without a manual. it appears all grounds are good, in fact i have power to the exterior coil when pulling over. it has an aftermarket kimpex coil on it now. was wondering if i can check resistance across the wires to see if it is shorted out. i have an analog meter and it shows no resistance when checked that way. the guy i bought it from said the internal coil is new along with all other ignition parts.... any help would be very much appreciated!!!!