spark and no spark

I would not worry about trying to start or coil voltage until you verify that the engine / starter is getting good voltage.

At this point I would clip your meter to the engine and starter big stud, crank the engine and post results. That right there will tell you if you have a basic problem from front to back


You may not and probably don't have a good ground from engine to frame. REMEMBER the K frame is BOLTED to the welded body shell. And, it can (will be) rusty. A 4ga ground strap is marginal with trunk battery.

You have to remember that "12 volt sized cable" only applies with normal factory cars.......short cables in the engine bay. Voltage drop gets worse with length of cable, therefore needs to be larger.

So.......follow in your mind the possible voltage drop only associated with the starter.

1....Hot side..........battery post to battery clamp........length of main cable........cable to eyelet end...........to starter

2....Ground side....battery post to battery clamp........in the cable.......connection to body........all way to front through body........to K frame bolts.......through K frame.......to ground strap.......through ground strap.......to engine block.