need help quick, Charger is stumbling.

[Khyron]

well, to make a long story quick, I took my charger out a few weeks ago and realized quite fast the car has developed a "stumble" of sorts.

When I start it, I'll get a hard crank every now and then, then she'll start up and idle well. When driving it, It starts to stumble.

Basically, on acceleration she seems fine. When I'm cruising, the car seems to studder back and forth, almost like it's starving for gas. But if I floor it, it stammers again and then while coming down from speed, it backfired.... through the muffler, not the carb.

I tested all wires and they seem to ohm right, it's a MSD6al ignition system, electronic Mopar Distributor, it's got a Holley 750 vac secondaries. Eddie heads and beefy rotating assembly.

I borrowed a Eddie 750 from a friend and figured, maybe a carb swap is in order, i figured the carb could have crapped out and I cant stress how much I need the Charger this weekend. I can't seem to get this eddie carb to run... car doesn't even like to idle.

I took a plug reading, then are a light toasty brown. NO gas on the plugs, plugs aren't fouled out.

here is the weird part, when I took the Holley off, i kept if fairly level, and it seems to leak into the main area. U think the 10% ethanol kille dthe carb gaskets? asy Ideas... need me to test something? is there a way to test the MSD to see if I'm not getting enough spark?

tell me what to do, please :-(

[RECHRGD]

FWIW I had similar syptoms and it turned out to be a bad coil.  Bob

[Khyron]

hmm, really, never even thought about the coil...

[Cooter]

When you say "Hard crank", you refering to the "Too much timing" "Hard Crank"?

Check to make sure your Vaccum Advance isn't pulling your timing even further out of whack when you are at cruis speed....You wouldn't believe how many I've seen set up incorrectly.....

[Khyron]

The Distributor is mechanical. No vacuum advance on it. hmmm, maybe the weights are out?

[Cooter]

Well, unless you set the "base" timing at something rediculous like 19 Degrees or something, I'd say the timing isn't it..Only way to tell would be to put a timing light on it that is adjustable and rev the engine to around 3000 RPM then, watch to see just how far and when the weights for total timing come in..I'd keep it around 36 degrees TOTAL...

[Khyron]

she is at 36 degrees total... but jumping. i believe the distributer crapped the bed.