Copper Vs Bosch Plugs

[Scott7512]

should I use motorcraft copper plugs or Bosch double iridium? I have a msd box and coil with gt40p heads.

 

[JD1964]

My vote is for Motorcraft

 

[General karthief]

Motorcraft or even autolites, nothing special needed

 

[Shakerhood]

Stick with Copper Plugs.

 

[Mustang5L5]

Copper.

Keep in mind, this is a 30+ year old ignition. Platnium plugs, let alone iridiums, were not in mainstream use so ignitions were not designed for them.

Plugs on 5.0's are easy to change out anyway.

 

[88LXSleeper]

NGK copper in all my cars.

 

[a91what]

I use copper plugs even with boost. Everything else is just throwing money away