Don't know how well the Pertronix unit works, but looks like you can get a couple of different models:
http://www.pertronix.com/prod/ig/ignitor/default.aspx
http://www.pertronix.com/prod/ig/ignitor2/default.aspx
http://www.pertronix.com/prod/ig/ignitor3/default.aspx
For a hundred bucks or so - probably worth a try...
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