the best banf for the bck is probably FMS 9mm.
i love mine.
also, i would recommend staying away from MSD. i've heard a whole lot of horror stories with there wires lately
I had 8.5 MSD's on my ride. They never gave me any problems. The higher the wire, the less the resistance, in turn equals more voltage to the plug. But make sure the rest of the ignition is up to par if you do go 10mm. Taylor makes a nice wire IMO.