tachometer
 

What is the best and easiest way to run the wiring thru the firewall when installing a tachometer? ie 69 Mach 1 351w

I stuffed my wire through where the gas pedal goes through the fire wall.

-JON

you have a wiring harnis throw your fire wall alredy take ice pick or all poke hole in ruber around it and feed wire throw

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In my '66 I put it through (and a bunch others) the rubber grommet that feeds the A.C. hoses in through the fire wall. Probably doesn't apply to a '69 Mach 1 though. Must be other grommets through the fire wall. Make an extra hole as stated above.

Rev

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'66 Coupe, 306, 300 HP, C-4, 13.97 e.t., 100.1 mph
1/4 mi.