[TR] New Spark plug wires arc

[Randall]

> It
> seems if the #4 wire is close to the heater pipe - it arcs through the
> insulation of the wire just below where to boot ends.

IMO that indicates the voltage is going too high before it jumps the plug
gap.  There is a limit to how much that insulation will stop (which is true
of the entire system).  So there may be a problem with the spark plug (or
gap).

Randall