Best plugs for hard street racing & DD

[Pennywise2]

only the platinums come pre-gapped, gotta gap the coppers yourself

Yep,I only get the platinum Motorcraft spark plugs
because of how long they last.

 

[Team Ford]

I found the AP764 sold as a set of 4 for $2.23. That seems like an unsafe price for something that is so critical.

Thanks for explaining the heat range for us!

 

[stangGT97]

I found the AP764 sold as a set of 4 for $2.23. That seems like an unsafe price for something that is so critical.

Thanks for explaining the heat range for us!

they're the same as the AGSF-32Cs in terms of quality, the only difference is the Motorcraft version has the full thread design. Something you may want to consider...