Hi all I'm new here so I hope this is in the right spot Iv got a xr6t fg 2010 it has modifications it pushing 360rwkw ATM and on I won't to change plugs as it flutters at 2 1/2 to 3 grand on cold mornings and I get a error code telling me it's a coil so what is the best plugs and gap should I use ty for your time

In my opinion, the best ones to use are Genuine Ford ones part number AGSP22YE11 @ $8.70 each and, if you are getting a coil fault, it may be time to replace them? not worth doing only one but a replacement of all 6 would be better. 8R2Z 12A366 BA are the coils @ $44.00 each genuine Ford.
You can more than likely get them of Ebay for MUCH less.

Thanks mate yer I done all 6 coils and gaped at .7 on the plugs seams more responsive I'm ranning 360rwkw ATM