Installed HEI Distributor and wires runs sluggish


Asked by Aug 23, 2016 at 10:54 PM about the 1973 Pontiac Le Mans

Question type: General

I had 2 different car guys help me with install. 1
with removal of old points distributor dial in timing
and wires the other with digital timing light and
tweaking. Car still accelerating badly. Has anyone
experienced this?

9 Answers


Sounds like you may need to tweek and advance the timming a little more.


Right now it's set at 12° recommended in Haynes manual. My another friend of mine said throw away the timing light and get a more crisp responsive accelerating rate by playing with distributor. When said and done I will probably be at 8-10 degrees

1 of 1 people found this helpful.

Agree,tweek/turn distributor up,


Ok. Thanks I will try it. Vacuum advance bumps into intake is one problem though when turning clockwise. Pontiac motor firing order is counter clockwise.


Sounds like the accelerator pump in the carburetor is bad. HTH. -Jim


I got a local mechanics thought and he said make sure you have 12 volts at distributor. If you have less than thats why. I checked and only have 6 or 7


You should ONLY have 12 volts at the distributor when cranking! 6 or 7 volts with the ignition in the run position is NORMAL! There's a resistor in the power wire going to the ignition coil. It's there to drop the voltage so the ignition coil doesn't burn out prematurely! HTH. - Jim


I removed old distributor. Coil is built in to new HEI distributor. Removed resistor wire from starter said per manufacturer. Installed a HEI 850007 blueprinted distributor.


Thanks for help guys. The new HEI distributor was bad. Got a new distributor. Now I'm dealing with a vacuum leak in hoses and intake manifold.

Your Answer

Add photo

Related Questions

Le Mans

Looking for a Used Le Mans in your area?

CarGurus has 19 nationwide Le Mans listings and the tools to find you a great deal.


Search Pontiac Le Mans Questions

Pontiac Le Mans Experts

#1 Rucko
Reputation 440
#2 Js08016
Reputation 180
#3 Daniel Perron
Daniel Perron
Reputation 160
View All

Related Models For Sale

Used Pontiac GTO
5 Great Deals out of 452 listings starting at $6,000
Used Pontiac Firebird
12 Great Deals out of 724 listings starting at $3,990
Used Chevrolet Camaro
226 Great Deals out of 30,943 listings starting at $1,217
Used Pontiac Grand Prix
30 Great Deals out of 2,871 listings starting at $900
Used Pontiac Bonneville
3 Great Deals out of 533 listings starting at $1,799
Used Ford Mustang
470 Great Deals out of 45,735 listings starting at $1,999
Used Chevrolet Impala
521 Great Deals out of 31,726 listings starting at $1,450
Used Pontiac Grand Am
1,215 listings starting at $1,999
Used Oldsmobile Cutlass
123 listings starting at $1,600
Used Chevrolet Corvette
119 Great Deals out of 20,753 listings starting at $3,000
Used Chevrolet Monte Carlo
21 Great Deals out of 1,408 listings starting at $1,995

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.