WormGod - I have a spare cluster, and it does in fact use 194 bulbs;however, the bulbs aren't what's coloring the display. In fact, the bulbs already have boots on them - green ones! The orange color is coming from the guage faces themselves - I don't think you can change it with bulbs. The needles are clear lexan, but have an orange coating (paint) on the bottom to produce their orange glow.

I just ordered new guage faces (white with the green or blue night glow). I have received the TOD area, gas/temp guage, and shift indicator, but not the speedo and tach yet. There was some earlier concern voiced here about how they installed, and "bumps" from covering the screws. I haven't installed them yet, but they look very easy and straightforward. The screws actually are not covered - you remove and re-install them. It appears that it will be a very professional looking install when done. I've hooked up the guage fronts to see the illumination and it is a vast improvement over the stock guages. As soon as I get them installed, I'll post pictures (if I can figure out how to do that!).