If you truly want the best performance, ditch the dizzy entirely. I use
an Electromotive crank fired ignition. This is on a TR6. The kit
provides three coils, a trigger wheel that attaches to the back of the
damper on the crankshaft and a sender that reads the notches on this
wheel. You can electronically control the advance at 1000 rpm, 3000 rpm
and 8000. The third one can be a retard if needed. Advance is pretty
linear between settings. The ignition fires on each cylinder at each
stroke [exhaust and compression]. I run 12:1. Car starts every time,
runs smoothly and is rock steady. Pictures upon request. Cost was
about $600 for the kit and 200 to get the trigger wheel machined to fit
the damper [too high a cost]. I now see the unit itself sells for under
$200, so there has been a huge cost reduction. Since you ar en ot after
a vintage look, I would highly recommend this option over any electronic
version of dizzy.
Chuck
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