Look into Radio Poubelle. Quebec's right wing radio stations have a large following and promote tea-party like views. Andre Arthur, one of the stars, was actually elected as an MNA for a long time from the region. That explains some of the more rabid conservatism, but I think some of the more right leaning following emerges from the Church having retained more cultural (not necessarily sectarian religious influence) influence on the region than in Montreal.
Arthur was actually an MP, even. But actually only served 5 years. I feel like Quebec City conservatism is more libertarian leaning. Socially moderate, fiscally conservative voters.
Sometimes capital cities can be more polarized...everyone who is not a civil servant is envious and ends of hating the civil service! In Quebec City the inner city seats where all the government buildings are - tend to vote left...just as in Ottawa you don't see Tories winning in Ottawa vanier or Ottawa Centre...the suburbs are a different story - but suburban Ottawa is also surprisingly conservative and there are PC MPPs sitting in Queens Park from suburban Ottawa...but you never see PCs winning equivalent seats in suburban Toronto
This is an interesting thought. Orleans, which has more public servants (more Francophones) tends to be more Liberal leaning. I think in Ottawa a lot of that anti-public service resentment is from bilingualism. A lot of us maudit anglais find it hard to get jobs in this city, especially in government.