Why did you not just let the Carter run steadily, keyed to the ignition? It has it's own internal bypass, so would limit to it's design PSI - they used to have a 3-4 PSI pump as well, if 7 PSI is considered too high for steady operation.
What do you mean by "reclocking" - just changing the intake/outlet port directions?
I don't have much faith in electric fuel pumps, They die at the spur of the moment so I left it alone until needed.
Yes the in/out needed to be moved for line up purposes.