CNW offers a Crane Cams coil that fires wasted spark style, this is compatible with the TriSpark and Pazon ignition systems, at least. CNW even supplies you with cooler plugs, 7 series NGKs
I believe that Crane had originally intended this hi-performance piece to fire off big twin Harley types, which is very significant beacuse when the Neanderthals get through with super lumpy cams, higher compression pistons and things like Thunder-jets and open pipes they are really soaking the cylinders on filling; follow a modified big twin and you can smell it for hundreds of feet; anything that can relaibly fire those plugs has got to be worth some consideration.
RS