After my experience I now have three return springs, in addition to the one concentric with the carburetor throttle shaft: 1) on the pedal; 2) from the carb forward; and 3) from the carb backward. Only the last one is a new addition since the stuck throttle.
BTW, the throttle / accelerator pedal action is better with the new push cable than it was (pre-incident) with the old cable, but it still doesn't feel like it moves as freely as I'd like. I have to believe that's an inherent part of the push design. Also, as noted in my OP, I'm not a big fan of the floor mounted / hinged design of the Neal pedal.
I've looked at Lokar and Summit's own pedal (
http://www.summitracing.com/int/parts/sum-460005) - which looks like a copy of Lokar. I've also looked at the one from Factory Five (
Accelerator Pedal - Factory Five Parts Catalog) and the matching cable (
Accelerator Cable - Factory Five Parts Catalog) and I'm leaning toward the FF parts.
Xack: As the FF pedal assembly seems to mount in a similar fashion to the Lokar / Summit pedals, I'd be curious as to your experience mounting your Lokar. Any issues with mounting it in a West Coast Cobra? Did you find the action lighter or with less friction than the push cable?