quantum555

what kind of plugs are good for the 91 5.0 gt. are the stock motorcraft ones suficeint if i plan to upgrade other componets. does a certain brand perform better? any suggestions would help. i just replaced the rotor and cap on dist. any other tweaks for the electrical system.</P>


thanks..</P>

mdvaldosta

Ive always used regular autolites, (basically motorcraft). Platinums will give longer life. Not saying that there isn't better, thats just what I used when I had a 5.0

stang man1

stick with moter craft and taylor wires

makarovboy

With your sig, I would go with the autolite stock copper plugs, gapped at .054.

I run the autolites one plug colder than stock, accel copper cap and rotor, autolite 9.9mm wires. It's probably unnecessary to run a colder plug, but it was suggested eight years ago because my timing is set to 14*. I recently went to a crane hi6-s ignition and dropped the high octane fuel for the 89 octane. Runs much stronger, could probably go to 87.

Never had a problem with detonation and it runs strong.

95Stealth302

Bosch plugs and Bosch premium wires, I know people always say stick to motorcraft but I definately felt a power gain after putting in the platinum 2s and new wires. Of course my old wires and plugs were shot, but I'm really happy with the new boschs.

quantum555

i will be upgrading the ingnition down the road, will the motorcraft plugs and wires be ok to use when thiscomes or should i upgrade now?</P><edited><editID>quantum555</editID><editDate>37885.7862962963</editDate></edited>