The objective of the dual-point distributor is to increase dwell to get a
larger spark. With the Pertronix you get the increased dwell with none of
the disadvantages of the mechanical point set in the dual-point setup.
There is one potential advantage to the dual-point distributor that you
might want to consider though. The dual-point distributor is set up to
optimize performance. As such, it has no vacuum advance and, presumably,
has a mechanical advance curve which is intended for maximum performance
rather than the best compromise between economy (i.e. with vacuum advance)
and performance. If you install a Pertronix unit you will retain the stock
vacuum and mechanical advance which should provide the best
economy/performance compromise. If you want the combined advantage of low
maintenance from the Pertronix and optimal performance from the dual-point
you can install a Pertronix unit, disconnect the vacuum advance and diddle
with the mechanical advance.
Will Seay - wseay@embarqmail.com
______________________________
"I think not therefore I am not" (anon)
-----Original Message-----
From: Robert D. Hogan
Sent: Monday, August 25, 2014 10:37 AM
To: tigers@autox.team.net
Subject: [Tigers] Distributor Performance
Is there any performance advantage of a Ford dual point distributor over a
Pertronix electronically triggered distributor. There certainly can't be
a maintenance advantage to a dual point, so is a dual point's firing worth
it?
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