Year One in-dash tach with MSD 6A

Tried going to neg on coil and then tach terminal in MSD. Do I need a tach adapter?

 

Like Larry said just attach to the tach terminal on the box I extended the wire on my car because the 6A box is mounted behind the battery on my car away from the exhaust. Factory tach works perfectly fine.

 

Might be toast....

 

I went through this way back when. I needed the tach adapter. I might still have it in the garage.

 

Here's what I used, unfortunately there is no part number on it. MSD had a couple different options and I distinctively remember sending one back. I'll send you this one for $20 plus the ride.

 

I guess worth at shot....
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thanks
Bruce

 

Pm me your address and I'll get it out to you. I'll see what flat rate box it fits in and then send you a total.

 

Thanks anyway Joe...I talked to MSD and they claim I need MSD 8920 adapter so I ordered one. If it doesn't work i'll get back with you...

 

Right on

 

Just following up........MSD 8920 got it working.