Has anyone found any tomes, manuals, or potions that increase ability scores permanently (such as manual of gainful exercise, tome of understanding)? If so, where did you find them, and are they randomized or always found in the same place? Let me know, and I will be forever grateful.

i am pretty sure the designers scapped the tomes because it was so open to "abuse". lol
In BG i certainly abused it, kept most stats at 23. They said it won't be in BG2 either.
Cheers