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Old 10-05-2007, 06:13 AM   #1
vtblazer
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Factory Tach & HEI ?

Will they work together?
Can you just hook up the tach to the tach lead on the HEI cap?

Does it just work or does it work/read correctly?

Any cures to make the factory tach happy with an HEI system?
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Old 10-05-2007, 07:42 AM   #2
vtblazer
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Re: Factory Tach & HEI ?

Ttt
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Old 10-05-2007, 08:41 AM   #3
BobbyK
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Re: Factory Tach & HEI ?

I owned my 71 for 8 years now.
It has a factory Tach and the HEI was in it when I bought it.

No problems for me.
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Old 10-05-2007, 09:51 AM   #4
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Re: Factory Tach & HEI ?

Cool, thanks BobbyK.

It's been installed in the blazer for years now, I've just never hooked it up.
Brand new...never used.

Will do it today and post the results.
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Old 10-05-2007, 09:56 AM   #5
k2c1959
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Re: Factory Tach & HEI ?

Quote:
Originally Posted by vtblazer View Post
Will they work together?
Can you just hook up the tach to the tach lead on the HEI cap?

Does it just work or does it work/read correctly?

Any cures to make the factory tach happy with an HEI system?
yes they do work. i installed a tach dash in my 72 with hei and all i had to do was plug it in and run me a hot wire down to fuse box (since i didnt have original tach factory wiring). works like a charm.
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