All of the sudden my tach doesn't work after the header installation. I don't see anything obvious so hopefuilly it's not the tach itself. Is there anything I should check first. It's an HEI system on a 70SS. Thanks in advance!
You didn't remove or break any engine (or other) ground straps during installation did you?
Haw about any other wires in the areas of the headers?
Oh yeah, the ground strap on many engines bolts to the exhaust header bolt and firewall- did you reconnect it?
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