identify the mystery MSD part

identify the mystery MSD part


Old Time Jeeper
Altamonte Springs, Florida
1979 CJ-7, Newly rebuilt AMC 360!, fully rebuilt GM TH400, Quadra-trac TC w/Milemarker 2x4 conversion, AMC mod 20 rear w/1 piece Moser axleshafts, mod 30 front w/tie rod flip and castor correction shims, 4 in lift, Centech complete wiring harness, dual electric fans on 3 core aluminum radiator, tilt steering wheel, 20 gal poly gas tank, new J20 steering box, MSD 6A ignition combined with TeamRush distributor mods
Hey everyone, I could use a bit of intel on this part....

what is the part on the right side of the pic?

The guy who sold the ignition to me said it went with the system...I found one pic when I did a google search, but no mention of what the heck it is.

It is approx 1 1/2 inches x 4 inches and weights a good bit considering its size. A ground block maybe??????????????

thanks in advance.
Looks like it might have some numbers on it? Google them.:D
Looks like it might have some numbers on it? Google them.:D

Nope, not a darn number at all... It says "MSD Ignition" in bold lettering...

but nothing to give it away...
i found this pic while doing a google image search..

It shows my mystery part on the upper right of the pic... but I couldnt get any numbers off it either!!!!
It's a Tach adapter.
Damn..!!! Right you are!!!

thanks guys....

I doubt I'll need it, but if I do, its good to have it..

That was toooo easy, couldnt stump you...I'll try and come up with something hard next time!!

thanks again

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