Impossible No, Just very costly.
Theres a reason people like Formula ls1 take out 20 pound seats, every little thing matters, and when you start with 4300 pounds your just shooting yourself in the foot.
Im gonna be building a B-body soon too, but I have no goals other than to occasionaly race on the street and tear people up.
Oh and If your tires ever hook up with enough power to get that fat ass moving, expect somethnig else to snap in half like a toothpick.