Welcome and GO TEAM STARCRAFT!!
Not uncommon for the road side of the Starcrafts to be low.
First, only raise the roof when the camper is level. If you don't yet own a BAL Light Trailer Leveler, make that your next purchase. They run about $75-$80, shipped, via sellers on ebay, or at http://www.rvpartscenter.com/ProductDetail.asp?PID=18058&SID=15&DID=45&CID=167
Second, never operate the roof with the 4 stabilizers down against the ground.
If you're following these 2 rules, and the roof is still uneven, measure the roof height at all 4 corners so you know what the difference is. If indeed it's crooked, crawl under the rear of the camper, and take a look at the winch drum and how the cables are winding around it. Many times, the cables will get stacked up on themselves, instead of wrapping next to themselves. If they're stacked up, lower the roof, and then have someone raise the roof while you guide the cables and get them lined up again. See how the roof measures. If this fixes the problem, great.
If the problem still exists, you can adjust the cables for the road side, by threading the eye bolt at each of the 2 turn buckles, further into the turn buckle. This shortens the overall cable length, thereby raising the roof more. It only takes a small adjustment to make quite an effect on the roof height.
To adjust the cables, you'll lower the roof until the turn buckles move to a position where you can get to them. Then prop some long 2x4s under the edges of the roof, front and rear, and then wind the crank a further turn or so in the "lowering" direction to put slack into the cables. Now crawl under, loosen the lock nuts on each eyebolt for the road side cables, and then spin the eyebolts into the turn buckles.
Have a helper spot your 2x4s so they don't fall on something, and raise the roof back up fully. Lower it, raise it, and check the measurements. Adjust further as needed, otherwise, if it looks good, crawl under and tighten down the locknuts and you're done.