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Installed a new MSD Dist for my '89 351 408 with a new coil and now the tach is jumping. 1992 302 computer still. Know why and how to fix this problem?
 

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Installed a new MSD Dist for my '89 351 408 with a new coil and now the tach is jumping. 1992 302 computer still. Know why and how to fix this problem?

I had the same problem with my brand new MSD dist. I called them and they were no help. I ended up putting a new pickup and TFI from the dealer and it fixed my issue.
 

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Discussion Starter #3
Pick up and TFI??
 

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Discussion Starter #4
pick up and TFI???
 

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pick up and TFI???
Yes the pickup is in the dist. The gear needs to be removed in order to replace the pickup. I did the TFI since I have little faith in aftermarket electronic components. Especially something as problematic as a TFI mod. That just what worked for me, it's cheaper than a tow bill.
 
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