what brand of sparkplug is good for a supercharger.
do you think the new boshe platnium +4 is a good idea or should I stick with motorcraft.
thanks for your help

Use a normal plug and get 1 step colder plug


Edited by: DaleBrown
Link was not working so I removed it. If it is required info to help with the question please repost it.

I also recommend a 1 step colder plugs also.

I highly recommend NGK plugs for any Mustangs. I lost a race Semi Final drag race once, because between rounds we decided to switch out the NGK's for fresh set of Champions. Three plugs failed in the next race. Never again will I use anything but NGK. Bosch are not bad plugs either. I can't vouch for Motorcraft.

I ran Motorcraft on my twin turbo set up. No problems. One step cooler and watch the gap. I kept blow'n them out. I ran the gap 32-35 and MSD

Tony B.

I'm using motocrafts one heat range colder @ .036 in my 98' Gt with a AED system (GREAT SYSTEM). I tried to open them up and they would not light between 3-4KRM. I heard good things about the Uridiums (sorry about the spelling) from a F150 Lightnings. I have been told that the Bosch patiums don't like blowers?? Hope this helps.