Which MSD box should I get?

[84_GT350]

I've got a 6A but if you race the car at all I'd step up to a 6AL. And MSD's rev limiter is soooooo much better than Ford's. What the hell were they thinking...shuting off the fuel? That'll hurt even a N/A motor, let alone a boosted motor. MSD's limiter drops sparks to cylinders randomly (hence the "soft touch" name). Oh yeah...the 6A was a breeze to hook up with an MSD distributor.

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1984 1/2 GT350 (#842 Hatchback w/ T-tops), 302HO, Comp cams Xtreme Energy cam, Carter 625cfm carb, Weiand Stealth intake, MSD distributor, MSD coil, FMS 9mm wires, 1 5/8" MAC unequal shorties, 2 1/2" MAC Prochamber H-pipe, Flowmaster 2 chambers, KYBs, 16"x8" 4 lug Cobra Rs, Falken 245/45ZR16s