I think he meant to completely exchange the two wires -- in other words, to swap them on both
ends.  I'm sure he didn't mean to change the firing order by just swapping them at the engine
end.  That could even damage the engine.

Bill

----- Original Message -----
From: "George Goff" <THX0001@AOL.COM>
>
> In a message dated 12/11/02 7:13:53 AM, kdlewis@JUNO.COM writes:
>
> << Swap 3 & 4 spark plug wires then repeat your test. If #3 now has no effect
> on rpm the wires are bad. If no change, swap the injector plugs (they all
> fire at the same time) and repeat your test. >>
>
> What on earth is this futile exercise supposed to prove?  Swap two spark plug
> wires on the most perfectly tuned engine and it is going to run like a pig.