BillRod,
You may be surprised what improvements can be made 100% legal, even with stock bulbs. The trick is to improve your vehicles ability to deliver the highest possible current to the bulb.
Your rig is 22 years old, the wiring that supplies your lights current is 18g at best and has a few loads and switches between the battery and the bulb. The primary improvement is to build a new, small circuit, that only does one thing, deliver the strongest possibly undisturbed current to your bulbs using new better spec, higher gauge wire, controlled by the original light switch and wires.
To accomplish this I splice into the headlight wiring approximately 18" from the head light, closest to the battery; this become the on/off power for the new circuit (this dramatically reduces the light load on the factory headlight switch).
This power turns on a one relay for the passenger side and another relay for the driver's side using underground waterproof insulated 10* gauge multi-strand copper wiring. The relays are powered directly from the battery with 20ah fuse. Each relay grounded and powering it's own headlamp.
You can measure the light output before and after, YOU WILL NOT BELIEVE the improvement.
After your new harness is built and operational, you can get well made legal bulbs and improve the light out put even more. I live in Washington, the most powerful headlight bulb that I can legally use has max of 55w on high beam. Phillips and Hella make some great bulbs that will not break the bank. I get mine from Summit Racing for under $4 each and carry a set of spares ($16 well spent).
The new harness can cost:
$5, 1 fuse
$14, 2 relays
$7.31, 10 feet of 10g red
$7.31, 10 feet of 10g black
$17, Special crimp tool
$8, box of gold plated connectors
$12, 12' Conduet
$8, 8 rolls of Tape
$16, 4 Hella bulbs (2 spares)
Under $100, no problem; you could go super cheap a buy a premade harness off eBay but getting all 10g wiring and gold plated connectors will not be part of it.