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Reply to "Holley Sniper EFI install"

The original tach on the car wouldn't move off 1,200 without the adapter.  Both Holley (who were very helpful) and Jon at Pantera Electronics confirmed it would not work without the adapter.  And my mechanic, who is a wiring wizard, couldn't get it to work without the adapter.

I don't know the answer to your second question, other than we tried everything and the tach adapter solved it within minutes.  Easy installation and works perfectly and in synch with the Sniper II digital screen readout, meaning they show the same RPM.

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