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How to connect an electronic tach with the HEI conversion?
https://slantsix.org/forum/viewtopic.php?t=68166
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Author:  Eatkinson [ Thu Apr 17, 2025 1:40 pm ]
Post subject:  How to connect an electronic tach with the HEI conversion?

Need to connect my electronic Actron tach to do some carburetor and idle speed adjustment fine-tuning. In the past, you’d hook one tach lead to the ignition coil negative terminal (if memory serves). But since that time, I upgraded the ignition to the GM HEI setup and now I’m unsure where that tach lead gets hooked. I followed the excellent HEI conversion procedure write up from SSDan on this site.

Who can tell me where it goes now?

Author:  eric22t [ Thu Apr 17, 2025 1:53 pm ]
Post subject:  Re: How to connect an electronic tach with the HEI conversion?

terminal b on the coil. there is an excellent picture in dan's article

Author:  Eatkinson [ Fri Apr 18, 2025 9:41 am ]
Post subject:  Re: How to connect an electronic tach with the HEI conversion?

Thank you. I haven't re-read that article in awhile.

Author:  eric22t [ Fri Apr 18, 2025 10:47 am ]
Post subject:  Re: How to connect an electronic tach with the HEI conversion?

you're welcome.
i kinda thought you might have not gone back lol

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