$4500 will get you a low-milage b18c gsr motor prolly installed. Or you could spend a bit more and go with the b18c5 itr. Both weigh about the same. If youre really concerned with handling, i'd stay away from the bigger engines. If you just want to go fast, the H22 is for you. Or for that price you could get an older b16 and build/turbo it a little.