I feel exactly the same.
As some one from Vancouver who lives in Montreal for eight months of the year to study, I honestly don't feel as though I should be allowed to vote in the Quebec election. I have little experience with Quebec values and culture and have very little knowledge of their political scene.
If I did vote, I would only vote because my BC bias makes me hate the PQ and I want anyone but the PQ to win. This bias doesn't really reflect a Quebecer's perspective, as I would be voting with national intention, rather than provincial intentions, thus making my vote in Quebec's provincial election completely void.