I'm still not clear on what you mean by camera angle but let me point a few things out and see if it helps.
The map in the game, the thing you get when you press the tab key, is set by the main course. That's course Zero.
The blimp follows the main course. Course Zero.
Course 1 is for rookie and intermediate trucks.
Course 2 is for pro trucks.
The race cam and helicopter will follow course 1 or 2 depending on the driving level you're using.
The race cam looks at your truck from the "ends" of the course segment. Whichever end is closest to the truck, is the view you will see.
You should always put space between the ends of the course segments. Preferrably at least three to four squares. You can go up to six or seven depending on the track layout.
You should never use more than 90 degree angles between course segements. If you want the truck to do a u-turn, you still need a little nubby segment or the helicopter won't work correctly.
You should always put the extended courses in. Failing to do so will often have the helicopter dropping your truck miles away from the track. And the race cam will not work right.
If you want to change the camera angle while driving the truck, press the V-key. Pressing the 7-key puts you in the cockpit view.