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roboticjunky · 04-24-2022, 04:21 PM

The 2 old tachometers could be current style tachometers. Just like in the diagrams on Holley's page.

https://www.holley.com/blog/post/tachometer_operation/

This is a pic from that webpage.

04-24-2022, 04:21 PM	#15
roboticjunky Registered User Join Date: Oct 2015 Location: IN Posts: 209	Re: Tachometer Filter For HEI ? The 2 old tachometers could be current style tachometers. Just like in the diagrams on Holley's page. https://www.holley.com/blog/post/tachometer_operation/ This is a pic from that webpage.