Seriously, don't worry about it. Hell, it could actually just be nothing. No offense, but you really don't know that much about cars and you actually could be overreacting. Don't get me wrong, it could just as easily be messed up, but I'm just saying. If your dad won't let you work on it, then don't mess with it. Enjoy it. I would have killed to be rolling around in a Mach 1 then, even a fudged up one. If it blows, it blows. I'm sure you and your dad will fix it then, and you'll be back to rolling around in it. Cars break, cars get fixed, its how it goes.