My personal goal was 3.66, which I know to be possible with this chip
How do you know *that* chip will run at 3.66? Just because some e6700's (or Core 2's in general) overclock great, some won't - and you have no idea how far your chip will go until you try it.
The only thing I can suggest right now is to set your memory speeds to Auto (for now), that way the mobo will keep the ram stable so you can see how high you can push your CPU. After you have the CPU running stable at ___MHz x _ multiplier @ ___ volts (numbers vary depending on how well the CPU overclocks) - then you can go back and try to get every last bit of speed out of the ram.