Celica :: 1991 - Front Passenger Brake Locking Up?

This is on a '91 Celica GT, 5SFE engine, with front disks and rear drums, and no ABS.

Whenever braking, the front passenger wheel seems to be doing much more of the braking work. In the wet, its very easy to lock up the front pass wheel under pretty mild braking. In the dry the same wheel is always the first to lock up, considerably before the drivers front, and much before they should, based on the deceleration.

I recently had to replace all the brake hoses, and a long run of hard brake line from the engine compartment back to the gas tank. I've bled the system multiple times and doublechecked all the connections, and cannot find any leaks. With no brakes applied, all wheels spin freely.

It seems like the braking circuit for the driver front wheel is not working as well as it should be. Is the passenger rear brake on the same circuit as the driver front? This seems like air still in the lines somewhere.

Could the master cylinder be causing distribution problems between the two circuits?