On Monday I will solder the leads back onto my voltmeter.
Here is a list of this I have done stuff to.
ECU
-Put a known working one in, still ran the same
-Made another ground with 2 12awg wires to the firewall
Cap and Rotor
-Replaced, still ran the same
-I did not feel and excessive play
Ballast
-Put a known good one in, MSD 0.8ohm ran worse
-Put old Standard one in ran the same
-Bypassed, before screwing with timing, car ran great
MSD Coil
-Tried 4 different ballasts, backfired with all
-Ran worst with MSD ballast
-After checking all the ballasts I bypassed them
OEM 30 year old coil
-Car no longer backfired, made less power than usual
-One day the car randomly would not rev above 2000rpm, so I fooled with the timing
Plug Wires
-Has Accel 8mm suppression core wires with less than 100 miles on them
Plugs
-Has NGK XR5 plugs with less than 100 miles
-Replaced champions
-Gapped at .35
Valvetrain
-Visual inspection and pushing with hand showed nothing.
-Some side to side play
Ignition Timing
-Really screwed up
Carb
-Float levels are correct
-69 primaries
-Stock secondaries
-Holley 670cfm street avenger
Distributor
-30 year old stock unit