How do you go past 14/2 unarmored flex through a cinder block wall?
Answers: it should be in any conduit or grey pvc pipe to protect it from the acids in the mortar.
Have you tried a Fish Tape? It's a coil of flat flexible lead that you can put thru the hole you make and manufacture a loop on loose end and attach your cable to it and verbs it through the wall. But, to be safe, why not put a piece of conduit through the wall first, it will stop you from getting hung up.
More Questions and Answers...