Weird No spark

[78stepside]

So Sunday when I was driving, truck started missing a little but I thought it was just bad gas so I kept running a while. Finally it just stopped completely and wouldn't run. Had no spark at all. Pulled it home and let it sit a few days and changed the ign coil and cap and it ran but was still a little rough. Today went to take it down the road and didn't go half a mile and started missing terrible and just shut off and now no spark at all. I changed the module and pulse coil, ran a jumper from my battery to the battery post on the dist. and still no fire... any advice on where to go from here? Dist. is still spinning so I know that's not the problem either.

 

[78stepside]

oh and truck is a 87 v10 but has been swapped to carb. 350

 

[89Suburban]

Wow, I would have swore it was the module. Are you running an HEI distributor then?

 

[78stepside]

ok, tested the newer module I had put in the truck. Tested bad so bought a new one...still didn't help. Yes It's HEI. Would the bad modulator cause the ign. coil to also go out or vice versa? Tested for power coming into the dist. with the key on and it's getting power, so I'm pretty sure it's somewhere within the distributor. The center contact where the rotor contacts inside the distributor cap looks a little worn but I don't believe that would be causing the no spark at all issue but correct me if I'm wrong.

 

[350runner]

How are your grounds?

Sent from the dust in front of you!

 

[MadOgre]

Brake clean your cap and rotor

 

[HotRodPC]

I take it that the pulse coil is aka pick up coil? That would be my next suggestion, but if you're changed it... just like the module being bad, pick up coil could be too.

 

[78stepside]

Well got spark back but it is running rough. Friend of mine pulled all the wires off the dist. before I could mark the location of the #1 plug wire. I didn't look at the timing marks yet but have tried to start my order from multiple post on the dist. cap. All the wires are in the correct order when installed but can't get over this running rough. Tried turning dist. base until it sounded best then adjust carb from there but nothing better. I can't hardly put the truck in gear or it will die out. When given throttle, it runs rough until about 2.5k then sounds great the rest of the way.

 

[MadOgre]

Could this possibly be a failed lock up torque converter?