[smithers]

I couldn't find on Edelbrock's web site. Can anyone recommend spark plugs/gap for their performer aluminum heads for 5.0? Thanks.

 

[monkeystash]

They have a great tech line.

Tech Line Only: 800-416-8628

 

[JDraper]

Recommended plug is Autolite 3924 or equivalent. Don't remember the gap off the top of my head though. I'll dig to see if I still have it somewhere...

 

[2nd 66]

Meh 11 year old thread but Aluminum Cylinder Heads - Ford - 5.0L - Performer - Edelbrock, LLC.

 

[happystang]

Autolite 3924's seem to be the baseline plug for aftermarket aluminum cylinder heads. I ended up going with an NGK plug with a colder heat range, that seemed to make my 306 run best with the Trick Flow heads.

You'll have to do some experimenting to see what your engine likes.