I have this page that is indexed by Google and has a few backlinks (maybe 5-6 but really good). I want to change the content on this page to be more user readable and really engage my users. I'm just wanting to know if I change the content completely for this indexed page am I going to be penalized? This content is going to be 1000x better with quite a bit more content so I think Google would love it. I just don't want to change the content and the backlinks I've built go to waste. I'm not exactly sure if that happens or it will just take time for Google to notice the changes and take affect in the serps.