Richard Clark wrote:

5. Can anyone recommend a really good set of ignition wires for best RFI
suppression?


Standard resistive wires. It sounds like you substituted straight
wires for the factory set when they wore out. That is generally a
poor choice for two reasons. One (presumably) is due to ignition
interference with communications. The other is lowered fuel economy
and power.

The application of ferrites to straight wires is introducing resistive
loss into the ignition current path. This is normally the job of
resistive wire. Introducing such loss is actually a boon. The loss
retards spark extinction (means that the spark will burn longer with a
resistance in the path). Longer burn time means more complete
ignition. This also means that the longer burn time equates to fewer
HF spurious products. This is called win-win.

73's
Richard Clark, KB7QHC

Bosch, and at least one other company whose name I've forgotten, used to
make a solid wire ignition cable that was coiled internally into a very
long choke. I used them 15 years ago on one of my vehicles that had a
noisy ignition system, and they were fairly effective, better than
resistor wires were on that car. I am not sure if they are still made,
but asking at your FLAPS should give you a quick answer.

tom
K0TAR

Oh, FLAPS is short for Friendly Local Auto Parts Store.