Red would be good.
I did jump over quickly to have a read of that thread. Big claim, but i guess it could be possabile.
I think it may matter how the plugs are getting fired in the first place. Many seem to upgrade their spark plugs and wires and maybe their dist. but then when it comes to the spark box and coil what was good 30 years ago is fine for them.
I rather use any good aftermarket wires, accel, msd, moroso and have a high power spark box and matching coil firing the spark plugs, then the super best wires and a run of the mill spark box and coil.
I said it before, theres good reasons MSD makes the 7, 8 and 10 spark boxes. Racers would not buy them just because they may look prettier than what Mopar used 30 years ago.