Thread: '63 tach issue
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Old 05-28-2020, 10:43 PM   #1
Greg63
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Join Date: Oct 2007
Location: Newmarket, Ontario, Canada
Posts: 1,066
'63 tach issue

I just replaced the stock points distributor, including Accel Super Coil w/ ballast resistor, with and Edelbrock Max Fire distributor, coil, and wires. The 327 runs great with this system but I have noticed the tach, which is a stock Sun in-dash unit, is not showing the rpm's correctly now. It appears to be low by several hundred rpm's all through the range, including idle.
Any ideas what is causing this and what the remedy may be? Could it be the ballast resistor no longer involved in the system?
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1963 Chevrolet 1/2 ton
2010 Camaro SS/RS
2014 Jeep Grand Cherokee
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