Try red LEDs, bulbs with more LEDs. I clear epoxied 2 LED bulbs to my '41 Ford gl*** lens and they showed pretty well. Ran wires to the sockets.
Best thing you can do is paint the inside of the bucket gloss white...I did this on my stock 40 Ford and it made amazing difference.
Technostalgia has lots of lighting options, and they know their stuff on LED's. Check with Todd there. They are hot rodders and are very helpful with a phone call.
when you turn on tail light .the llight is ao brighter .and it was dazzling .the driver behind can't see the road clear .