C CURT CHARLES Guest Apr 27, 2009 #1 i am looking for the best spark plug for a gm zz502 engine and what sood the spark plug gap be.
J jumbobret Guest Apr 27, 2009 #2 What distributor are you using? Make a difference in plug gap. E3 spark plugs are great plugs, get them at Pep Boys.
What distributor are you using? Make a difference in plug gap. E3 spark plugs are great plugs, get them at Pep Boys.
