My first Alakazam is 13 12 15 IV at 2480Cp with confusion and future sight

It's not bad I suppose, but a Psychic event is due to kick off soon and there's a decent chance of finding a better candidate from it.

A 2480 CP Alakazam seems to be a reasonable high level anyway (level 30 ish?) so would certainly be usable as it is right now.

Adding to the above, you are better off using any IV Mewtwo that knows psychic.

If I'm correct, there's no current soloable or duoable raid boss requires Zam right? Then a 2480 cp Zam should be powerful enough and no urge to power up.