We weighed my car on our scales after it was completed, and the front to rear ratio was almost perfectly even.....the weight at every tire was pretty much even, except the right rear was a tad heavier for some reason. Each chassis will be different, too - depending on how it was built, where you have placed items such as your fuel cell, radiator, if you are running a 2nd seat, etc.
If you are worried about how your car will handle the jumps, that's much more of a suspension set-up issue than anything else. You can have a rear or front heavy car jump perfectly fine if the suspension is set up properly.......
Corners are awesome in my car, but my chassis is super low.....corner handling will depend on your chassis design, ride height and suspension choice/setup as well......
