After installing Limey's relays I was still disappointed with the output. So I switched to 60/65 Halogen bulbs with the P45t base for the CIBIE holders. STILL not enough brilliance.
So I tested the bulbs direct to battery. BRILLIANT.
The wires had to be the problem. So I cut off the headlamp plugs, stripped and cleaned the wires [they really need to be replaced but that will have to wait until I order some new wire], polished the tips, remounted 'newly' cleaned plugs from the old parts car and NOW WE HAVE LIGHTS!
A SIGNIFICANT difference. The plugs were simply draining too much juice and in reality it was the one on the right, but I replaced them both.
Let there be light!