78 cj7 with a 258.

The coil is an aftermarket coil(installed by prior owner) and it tests
ok in one test and just a bit out of the Haynes manual specks on three
other tests. I don't think the coil is going bad but I think is not
quite EXACTLY the original equipment part. How important it to have
the EXACT coil in there that EXACTLY meets original equipment specks?
The coil in there is real,real close to the right specks -see below-.
The CJ was barely running when I bought, I tuned it to specks and
reconnected vac lines loose connections etc and now it runs pretty
good so I have no need to change the coil unless it is likely to cause
some other electrical parts to fry on me.

TESTS:

For the primary coil Haynes says at 75 deg F 1.13 to 1.23 ohms mine
tested at 1.4ohms. Haynes says at 200 deg F 1.5 ohms mine tested at
1.7 ohms.

For the Secondary coil Haynes says at 75 deg F 7700-9300 ohms my coil
tested at 8600. Haynes says at 200 deg F 12000 ohms my coil tested at
9700 ohms.

If you think I should trash this sweet looking coil what unit should I
look for as a stock/original replacement or would you recommend some
high output coil etc and why not original equipment specks?

Thanks for your opinions!,
Paul

More Details/description of coil:
---------------------------------
It is an aftermarket coil with no label or part numbers etc on it(my
guess the sticker identifying it came off). It just a chrome run of
the mill looking coil with "+" & "-" terminals. 12V-R stamped in the
black top(I assume -R is for Resistor) it had an external resister
mounted to the side of it that was not hooked up(I removed it for
better looks). This is correct because the hot lead wire to the coil
is a resistor wire that tests out at 1.35 ohms right exactly to specks
ie the external resistor is not needed on the coil because it the
resistance is engineered into the resistor wire.