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there will be a spot on back of distributor cap it will say tach run wire from there to gauge. You probably need to run a switched 12v lead as well to illuminate the tach at night. The tach slot on the distributor will take care of 'timing' the pulse to the tach. Often times the tach will have a switch setting for 4-6-8 cylinder. Read the manufacturer instructions carefully.

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โˆ™ 2006-03-29 01:07:17
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Q: How do you put in a tach if your vehicle doesn't come stock with one?
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