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Mach 1 · 03-30-2002, 03:23 AM

I have my aftermarket tach hooked up to the msd box and my factory tach to the coil. Both work perfectly. I used to have my aftermarket and factory connected to the coil before the MSD box and both worked. I dont think your problem is not being able to use the coil wire for the tach with the MSD box

03-30-2002, 03:23 AM	#5
Mach 1 Registered Member Join Date: May 1999 Location: Georgia Posts: 3,866	I have my aftermarket tach hooked up to the msd box and my factory tach to the coil. Both work perfectly. I used to have my aftermarket and factory connected to the coil before the MSD box and both worked. I dont think your problem is not being able to use the coil wire for the tach with the MSD box __________________ 2002 GT 1993 GT (SOLD) '93 Mustang GT RHC member #142