I didn't notice much of any thing till I got my SpiroPro wires on there and
gapped out to 50.
Besides the only way the mileage will get better is if the HP goes up
----- Original Message -----
From: <Mst29@aol.com>
To: <dakota-truck@buffnet.net>
Sent: Tuesday, October 26, 1999 3:22 PM
Subject: DML: MSD 6-A..................
> I am soon buying an MSD 6-A ignition. Do I have to gap
the
> plugs wider
> for it to work right? I would think that leaving them stock gap would give
me
> better mileage than opening the gap,but not gain as much power.
>
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