Shovelhead, Dual spark plug fouling catastrophic! | Jockey Journal Forum
HARLEY-DAVIDSON GOLD SPARK PLUGS - '78-'84 Shovelhead and '84-'99 Evolution<br />1340-equipped models or use in place of Nos. 5R6A and 5RL 32367-04 / Spark Plugs / Safety & Warranty / Parts &