Horse Sense:NMRA racers should consider themselves lucky the sanction even permits the use of MSD's 7531 ignition box in some of the heads-up classes. In a classic, racing-rules catch-22 (where a kick ...
If you're into budget carbureted LS engines, MSD has just made your life easier with a new ignition box that offers several new and useful features. To start, this new controller will manage both 24x ...
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