which is the best spark plugs????
 

Which is the best spark plugs to use for my 95 GT. Only a few mods:
1) undrive pulleys
2) Crane Ignition
3) 3.73 gears
4) K&N filter.

I want the best plug that will give me good performance but I won't have to change every 15,000 miles.

Bosch Plugs
 

You can't go wrong with Bosch Platinum 4+ plugs. When I changed my stock plugs with the regular Bosch Platinum's I noticed better throttle response. Then the 4+'s came out. The Platinum 4+ are the best plugs you can buy and they last a long time.

Personally, I think platinum plugs are overrated and overpriced.

I've never had a problem with good ol' Autolite or Motorcraft plugs...