You have way more mods than I do but this matches what I got with my 3 Bar, T-Stat and tune and were like $60.00 on Amazon. There have been some threads recently on plugs, forgot the brand but looked like quality stuff and the guys had mods close to what you have. Not sure if the plugs I shared are what you are after but figured I would share, just came in the mail yesterday.
I ordered Those.. And I texted Brad to see what he recommends.. Want to get out to the track in the next few weeks when the weather starts cooling down and see what we can get with the turbos and some traction..
I may not have dug far enough, but I spent a few hours today researching spark plug replacements for our cars that are easier to get than the Ford Performance plugs. I manage an O’Reilly, so fortunately I have access to some books and the system for spark plug look ups and cross. After...
Installed plugs today. In the process the coil bolts where welded to the inserts on the vc.. Got them separated then reinstalled the inserts with two ply apoxy in the vc let set up then tightened down the coils.. Avoided needing a valve cover..