Carl,
You can expect some improvement with a "super coil" but to get the
full benefit you will need to re gap the spark plugs accordingly.
Don't get a coil with to high of a voltage rating, you may only have
more problems on a stock engine. Very high voltages and small spark
plug gaps do not mix. You can get so violent of a spark that it will
actually push the mixture away rather then light it off when it
should. Current flow is just as important. Some of the best coils
made are variable magnetic pickup coils. I have a 74 1/2 TR-6 that
has been modified extensively. I am using a Allison electronic
ignition controlled by a Jacobs computer and a Jacobs variable
magnetic pickup coil. My engine is pretty close to 150 HP and I am
running NGK spark plugs currently gapped to .056". In overdrive on
the highway I can still get 22 mpg. It has never missed a beat. I
highly recommend electronic ignitions because of their reliability,
hotter spark, no maintenance, and performance benefits. I think it
would be one of the single most beneficial things you could add to a
daily driver. You may or may not feel any difference in your
performance with just adding an electronic ignition but you will
appreciate never having to mess with points and condensers again.
Pat in NC
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