Having chunk update problems with all the advances machines, after turning them on my chunk updates will jump to 40 or 80 and stays there indefinitely. I have tried downgrading to 4.0 and updated to 1.97 IC2 but same result(fresh install in between). As soon as I cut redstone power from the machines my chunk updates drop to the normal 0 - 5 and the game runs better.
Mods in use and tested with:
FML 3.3.7 build 135
IC2 1.95B & 1.97
BC 3.1.5
Advance Machines 4.1 & 4.0
NEI 1.2.2.4
CodeChickenCore 0.5.3
Java 7 u 5 64 bit