For some reason lithmod 1.0.12 has the kernel speed locked between 500 MHz and 800 MHz. SetCPU can be used to adjust this but I didn't want to pop for the cash when android has this feature built in.
To change the cpu scaling:
Simple:
Edit the /init.sholes.rc file and chage the scaling_max_freq and scaling_min_freq settings
Complex:
(still in progress)
-rwxr-x--- system system 6473 2010-07-22 23:44 init.sholes.rc