Ron: I don't see any need to worry about which CSX #'s came with what configuration. Stop it already. Stop the insanity! Go back to your original wiring diagram.
The simple fact is 2x4's were an original configuration for SC's and are correct for an SC spec car. So are 1x4's. Does it really matter which configuration was predominant? No. It doesn't. There.
1x4's are better for track work. Although my dual quads run fine, if you really corner hard to the right there will be a slight (I mean very slight) hesitation upon applying throttle. Not enough to bother me for the street. But if racing where every nano second counts you might want a single quad.
But nothing beats the look of dual quads. Well maybe a full set of Webers but thats not correct for an SC!