What spark plugs for an N/A Coyote?

[Brutal Metal]

What did everyone use when you did your first plug change? Does the NGK TR55's fit these heads?

 

[SVOGT302]

Stock Motorcraft SP519 Iridium or SP548 Platinum gapped @. 045 -. 050

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[96gt02]

^ This stock motorcrafts are better than anything else.

 

[Brutal Metal]

Never been a fan of platinum core, I've always ran copper.

 

[Blackplastic]

Never been a fan of platinum core, I've always ran copper.

Why?

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[96gt02]

copper burns better, but you have to change them more often. I would run coppers in my coyote but im too lazy to actually figure out what the copper replacement would be

 

[me32]

If your car is NA running the stock plugs tends to work the best. Copper were great for the older cars and if you have a power adder. But otherwise the stock plug works best in the coyote