The Spark Plugs are actually a MHRA club established in 1955, and most of it's members are in the South Lyons area,... Here is a link to there section of the MHRA websight.... MHRA Spark Plugs
For accurate info about Detroit area hotrodding in the '50s, call Harry McAuliffe. He's been part of the scene since then-also owns a car or two.
Accurate yes,..But please respect Harry's privacy,.. and please take down his phone number,.. Harry has been a friend for several decades (close to a half century) and a fellow MHRA Road Knight. And he dosen't need a rush of phone calls.