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07-28-2023, 11:36 PM
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#26 | |
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Senior Member
 
Join Date: Nov 2022
Location: Kansas City
Posts: 497
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Re: Tachometer kills the engine
Quote:
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1971 C10 manual cab. 76 4x4 chassis. Cut short frame. Carbureted Blueprint 350, automatic 700r4. ~ James |
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07-30-2023, 10:43 AM
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#27 |
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Registered User
Join Date: Apr 2015
Location: East Tn (In the heart of the Smoky Mtns)
Posts: 1,887
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Re: Tachometer kills the engine
Sub’d for future reference.
Although I will say, that I have a factory Tach, and many years ago I installed a Mallory “Electronic Ignition Module” to replace the Dual Point System that I was running. I’ve never had any issues. Just lucky I guess 
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07-30-2023, 02:26 PM
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#28 |
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425hp409
Join Date: Oct 2008
Location: Prosper Texas
Posts: 841
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Re: Tachometer kills the engine
I have tested and calibrated 3 OE Tachs and they work with point and GM style HEI ignition. I don't have any experience with aftermarket tachs.
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Charles 68 SWB, Dad bought new, now 396 & factory ac 64 Impala SS, 409 425HP, 4 speed AC 64 Bel Air Wagon, 400 Small Block 57 Bel Air all original 283 w/Factory Air 77 GMC Sprint, 454/425HP 67 Olds 442, all original 90 ZR1 Corvette |
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