ASA, Ken-Ten Rules Concerning MSD Distributors and Crane Ignition Boxes - Crate 604
Alright y'all - here's another stoopid question I have concerning crate engine rules and what works, what don't, and what is allowed....
I'm trying to figure out what IS and IS NOT allowed by the ASA concerning distributors and ignition boxes. The reason I'm citing ASA rules is that the two local (paved) tracks here in Tennessee, as well as the Ken-Ten series, refer you to the ASA rules concerning the subject. Fairgrounds Speedway Nashville, Ken-Ten, and Highland Rim rules say basically: "All Chevy crate engines may run MSD distributor and Crane ignition unit same as ASA." Our rules at Nashville also state all crate cars will use a 6400RPM rev-limiter chip, and all built engines will use a 6900RPM chip. When you look at the ASA rules (and I am assuming the tracks here and Ken-Ten are referring to the Midwest Tour rules), they say, quote:
"All ignition systems must be 12 volts. Only one 12 volt battery maybe used at any time. Ignition boxes may be switched by ASA Midwest Tour from car to car or swapped with tour’s house ignition boxes. Wiring will follow in this rule.
Approved Ignition boxes. (call for others that maybe used)
Crane
Crane Cams Ignition Hi-6r p/n 6000-6400, or Hi-6rc p/n 6000-6700, or Hi-6 p/n
6000-6440
MSD
MSD6A, MSD 6T, MSD6AL, MSD 6ALN, MSD6
*CRANE IGNITIONS HIGHLY RECOMMENDED!* ".
The rules don't specifically say what distributor can be used. I also have seen references to "swapping out MSD boxes" in some of the different rules. I'm ready to start buying ignition / carb parts, but I am completely confused as to what is okay and what's not. Any help or advice?