It gives me a bit of the heebie jeebies to know Perry was his Texas campaign manager in 1988, but it's not a deal killer for me as long as Perry truly has become conservative.
That being said, please don't pretend Gore was any kind of conservative, it doesn't help to believe a fairy tale.
Please note that the ACU rating to which you refer was not Gore’s lifetime rating in 1988. It was his rating for 1988. What I mean by that is that the ACU’s yearly rating is based on a legislator’s votes for ONLY the bills considered (voted upon) that year. So if there were no bills about abortion or gun control in a particular year, the rating doesn’t reflect a legislator’s overall positions on those issues.
Don’t take my word for it. Please go to the ACU website and read about how they calculate their ratings. I have been unable to find Gore’s lifetime ACU rating from 1988. So I have researched his positions on various conservative issues. He was pro-life, pro-guns, & pro-defense.