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I'm trying to hook up a Sun Tach on my 90 LX w/5.0 engine. I'm using an MSD Blaster 2 coil and stock distributor. result: no signal (reading). Do I need a Tach filter to get this combo to work ???
Thanks.
 

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go buy yourself a 6AL or a 6AL 2 from what I herd it ruins the tach if you wire it to an msd ignition coil try getting a 6AL module and plugging it in the tach port otherwise use the stock coil
 

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mine was hooked up when i got the car,its hooked up through the dash stock tach was disconnected and autometer tach hooked up,has msd blaster coil and had no problems,but i picked up a 6al box and installed it and rehooked up tach to 6al
 

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really the instructions on how to install the tach says that you shouldn't wire it to an msd ignition or it will fry the tach and it voids the warranty.
 
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