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Discussion Starter #1
MY 69 FACTORY TACH IS READING AN ADDITIONAL 1,000 OVER TRUE RPMS, I HAVE IT HOOKED UP TO A CHEVY HEI DIST.
 

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Mine was reading about 1000 RPM too low. Maybe we could have swapped?!?!


It sounds like the meter is fine but you may need a new PCB. "The Tachman" serviced and calibrated mine about a month ago. Fast turnaround and a fair price. Do a search for him. They are located in GA. I would use him again for another project if needed.

-Mark.
 

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I've been told by several people and a tach repair shop that you cannot hook up a factory tach to an HEI distributor just for that reason. There are some shops that can modify your tach so it will work but I went with an aftermarket one from Classic instead of screwing my original one up. I am also using an HEI dist.
Good luck.
 

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I have one that is right on the money and its never been repaired
 

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Discussion Starter #6
I CALLED CLASSIC INDUSTRIES SINCE I BOUGHT IT NEW FROM THEM [OER BRAND] AND THEY SAID AS OF MAY 2003 THEY WILL NOT WORK WITH HEI DIST. BEST PART THEY WILL TAKE IT AS A RETURN SINCE ITS INSTALLED.HOW DO YOU CHECK IF IT WORKS WITHOUT INSTALLING? TALK ABOUT CUSTOMER SERVICE AFTER YOU SPEND ALL YOUR MONEY BUYING THEIR PARTS.
 

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That's weird that they said theirs will not work because that was the big selling point that they were making with the OER brand. I bought 2 from Classic Industries 8K 6K red line and they are both hooked up to HEI's. One was about a year ago and another one recently in another 69 were doing. They both work fine. I did hook up my original to test and it seemed to work but bounced around alot.
 
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