electronic distributor with no advance?

[73-charger-383]

My 73 charger has the original electronic distributor set up(with the ECU and the whole works), from the 318 that was in the car originally.  Now i've swapped it out for a 383.  The car runs and everything, but it seems i'm a little low on power.  -does the setup for a 318 have the juice to fire a 383?  Also i have no idea what the distributor that is currently in the 383 is out of.  The block is from a 68, but distributor is electronic.  -there is no vaccum advance on it either......does any of this make sense?

[John_Kunkel]

The 318 ECU will run the 383 just fine.

An electronic distributor with no vacuum advance is either an MP full centrigugal or a later Lean Burn unit. The Lean Burn distributor has a dual pickup internally and 4 wires instead of two exiting the housing.

[73-charger-383]

is there another option John?  It looks like a factory distributor, but only has the two wire "bullet plug".  Should i just replace it??  What would you suggest?

thanks

[Ghoste]

The MP unit would be two wire.  Is there a part number on it?

[73-charger-383]

the only numbers i could find with a quick glance were on a copper tag
4091709
with 33 7 in smaller numbers above it.

[Chryco Psycho]

with no advance curve it will be down on power
a local parts store should be able to get you a reconditioned 400 unit with advance for a reasonable $$ or Mopar has new units for a lot more$$

[Ghoste]

That seems like it could be a Chrysler part number but I can't find the application in the material I have here.  It doesn't look to be a current MP number for a distributor.

[John_Kunkel]

the only numbers i could find with a quick glance were on a copper tag
4091709

4091709 is from a '78 passenger car 400, originally a Lean-Burn.

[73-charger-383]

what do the two extra wires go to??  -does this mean my distributor is basically junk??  --and why the heck would someone pull the advance off of a distributor anyways?

[Chryco Psycho]

lean burn dist never had advance mechanism , it was done by the computer

[Ghoste]

The extra wires were for the other pickup and at one time, they would have had a bullet type end on them as well.  There was a run pickup and a start pickup in the lean burn distributor.  Some people alter the advance mechanism inside the lean burn units as a low buck approach to going electronic without vacuum.
It it easier to swap it out for the newer MP unit.