With regular 194 bulbs it should be plenty bright to see, I think you still have an electrical problem if its really that dim. Do you have the backlight dash or the base, non-backlit dash?
LED lights don't filter well so its not a good idea to use white LEDs. Red LEDs will work, but the needle will also be red (instead of yellow) which loses some of the contrast. Something like this is probably the most economical, and they are quite bright too:http://www.amazon.com/Cuteq...keywords=194+red+led
You could also consider using 168 incandescent bulbs instead of 194 bulbs. They are the same physical size but are 5 watt bulbs instead of 4 watt, and put out about 50% more light.
[This message has been edited by masospaghetti (edited 03-13-2014).]