Yes there is, all you need to do is adjust the tie rod ends.
If you have stock a-arms then no, you can't adjust the camber.
Yes there is, all you need to do is adjust the tie rod ends. Make it so one of them pulls in more and the other pushes out.
I would guess that you've got a bent spindle. Has the blaster even landed on its side? I was riding a wheelie on my old blaster and I ended up flopping it on its side and it bent one of the spindles. Just my guess?