MacBook Pro overclocking

Absolutely not.

If it could be run any faster, it would already be running faster when you took it out of the box. The RAM memory and the rest of the system on a chip and its multi-level caches are already in tight lockstep, as fast as they can possibly go. Putting everything on one chip-carrier allows the elimination of cross-chip driver circuitry, why shaves portions of nanoseconds off data transfer times.

They already did that optimization. if you want more performance, you need to look at a higher-end models, not fiddle around with clocking.