Car was running fine and ran fine loading it onto a trailer. When I went to unload it started right up but died about 3 seconds later (as if a switch had been thrown...no sputtering). Would not fire up again.

Getting fuel and spark at plug wires.

Discovered a blown fuse, replaced and when trying to start the car it blew the fuse again. Noted that the fuse connectors had positive continuity even with fuse removed so pulled each wire and found accessory wire causing continuity. Unhooked it and replaced new fuse.

Car started right up but died about 3 seconds later again and won't fire up again just like before....no blown fuse this time.

The car has MP elect ignition and MSD 6AL box. I'll follow the MSD troubleshooting suggestions but was wondering if anyone had any other experience/suggestions. Not good at electrical stuff...

Thanks.

I had that problem once, my alternator wire had come off. Check all the connections under the hood to make sure they're tight.

Alternator connections look good. Battery has 12.34 Volts so that should be fine.

Tested the MSD ignition by unhooking the coil wire from distributor cap and placing 1/2" from ground. Then unhooked magnetic pickup leads to distributor. With key in ON position I jumped the MSD magnetic pickup lead wires (green & violet) and got a spark from coil wire to ground. So based on MSD troubleshooting guide they indicate that if I get spark then the ignition is fine.

Still won't fire up. Triple checked and confirmed fuel is being squirted into carb.

I tested the ohms across the two magnetic pick up wires coming from the distributor and got around 60 ohms. Seems awfully low. I tested with the battery unhooked.

Checked the neutral safety switch was plugged in and it was so I'm starting to wonder about the distributor.

Check the reluctor gap inside the distributor, if too wide the MSD box will not fire the coil..

Just my $0.00..

Any more advice thoughts?

Does it seem to try to start when turning over, like attempting to fire up and failing, or does it just turn over and that it? How did you check for spark? You mentioned that you were getting spark, so that's why I ask. You getting spark at the coil, at the plug? Technically if your getting spark at the plug and getting fuel, there should be combustion lol. If you can clarify a bit for me I believe I can help you find the culprit

Tested voltage at the red MSD wire.

Battery was at 11.97 volts

Voltage at red wire with key on was 10.7 volts. While cranking it was 9 volts.

Don.. how's the bulkhead connector, especially the power source going into the car? How's the backside of the dash look like, i.e the wires going to the amp gauge and/or steering column? Everything out in the engine compartment may check out fine.........

Tested again at full charge

Battery was 12.98 volts

MSD red wire with key ON was 11.5 volts

While cranking it was 10.3 volts

So battery and voltage to MSD box is not the issue.

I re-tested the MSD ignition by unhooking the coil wire from distributor cap and placing 1/2" from ground. Then unhooked magnetic pickup leads to distributor. With key in ON position I jumped the MSD magnetic pickup lead wires (green & violet) and got a spark from coil wire to ground. So that test passed.

I then tested MSD ignition by unhooking the coil wire from distributor cap and placing 1/2" from ground. Then looked for same spark while engine was being cranked....NO SPARK.

My next test will be to look for spark while cranking and while jumping the magnetic pick up leads.

Goin on a hunch here... try this, place your key in the run position, and then go to your start relay and manually bump your battert power with the starter solenoid to turn it over and see if it fires up. It almost seems as though your not getting power to the ignition when turning the key into the start position. I know you said you were getting 10.5 volts while cranking, but its just a hunch...

I tested the MSD ignition by unhooking the coil wire from distributor cap and placing 1/2" from ground. Then unhooked magnetic pickup leads to distributor. With engine cranking I jumped the MSD magnetic pickup lead wires (green & violet) and got a spark from coil wire to ground. So that test passed.

It would seem to me that when the distributor is isolated from the equation I get spark and when the distributor is part of the equation I do not get spark. So I think we are getting close.

Then it has to be the magnetic pickup in the dizzy, either out of adjustment or the the pickup itself somehow got toasted when you had yer short....