Yes, if you're able too, a Sp. Attack as big as that means a strong Charizad Y.
But, at which level is him/her? What's its nature? depending on those, when he gains some levels (if he's still able to) he could be better as a Phys Attacker than a Sp Attacker. I'm no expert at numbers and gains, but as a mather of what I do know I think these questions should be asked.
Hope that someone more well versed at numbers and stat gains and stuff can enlighten you tho.