I am new to the general RCcar/truck hobby. I enjoy just driving it around like crazy. Iam wondering if Ishould change any gearing. If I do, what does what? More teeth, higher speed, less teeth quicker acceleration? I am sorry to sound like a moron, but there has to be an easy answer.

My Rustler does not pull wheelies, which I like. But, when going over small jumps the front always heads straight to the ground and it rolls end over end. What can Ido to increase a level "flight"?

It is brand new, got it for Christmas, so the newest model.

Thanks for your patience and help.