My RPM's will just die. I am driving and then stop at a stop sign and the RPM's will dip down to 0, then rev back up to normal idle. This does not happen every time, however. And sometimes the car will not start after being driven, but other times there is no problem. I am thinking this is electrical, but possibly carbs? I have replaced the points, plugs (not NGK plugs, but Champion-shitty), the rotor and cap. Could the coil be going out, or does it simply die when it goes bad?

From the look of my plugs, it seems the carbs are running rich. Any thoughts on the above, thanks...

Jezze,

Have you checked your float-bowls? How 'bout the fuel filter? I was having the same thing on my 71, and I eventually swapped out the mech. fuel pump and made sure the floats were right and now the thing purrs.

It might be your ignition. Had a '73 240Z that would do this. Replaced the ignition assembly and it was fine.