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Post Info TOPIC: MSD/HEI wiring question


A Poncho Legend!

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MSD/HEI wiring question


I am putting an engine in that was removed from another car. I can't recall if the HEI had a wire running to "BAT" terminal on the HEI. It seems to me it didn't. Does the MSD box eliminate using the BAT terminal once the box is wired up?

As you can see in the pic, there is a harness clipped in to the back row of terminals on the HEI but the BAT and TACH remain empty.  Seems to me if we do wire up a tach, it runs off the MSD box, correct?



-- Edited by Carl Stevenson on Wednesday 23rd of December 2009 12:48:32 AM

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)



A Poncho Legend!

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I think I found my answer. My nephew had emailed me a bunch of instructions and I only did a quick scan of them, not reading in detail. This pic explains it I think. We should have spark if we try starting it tomorrow night.



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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)

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Uber Guru

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I think the keyed ignition wire that would have went to that terminal goes to the small red to the box.  


Not sure if this helps wiring instructions  


You beat me to it that diagram in this link

http://www.msdignition.com/uploadedFiles/MSDIgnitioncom/Products/distributors/8500_instructions.pdf

-- Edited by Beaumont4008 on Wednesday 23rd of December 2009 01:16:36 AM

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A Poncho Legend!

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Yes, I wired the red wire to an "ign" pin in the fuse box. I understand the system better now. The distributor is now basically a pickup and that's it, no electronics in it.

Well, of course it has the coil and rotor still but no module.

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1966 Strato Chief 2 door, 427 4 speed, 45,000 original miles 

1966 Grande Parisienne, 396 1 of 23 factory air cars (now converted to a "factory" 4 speed)



Uber Guru

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Yea I saw that to . Thats neat that the module is removed, never new that.

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