With a stock motor no benefits from bigger injectors dont waste your time. Beside bigger injectors dont make more power. They are needed to deleiver more needed fuel to a high horsepower motor to prevent detenation.

Bigger cams waste of time unless you spend the money to do some head work so you can take advantage of the added air flow. And dont forget the intake and exhaust manifolds. It all has to work together to make power.

9:1 would be the compression ration of the specific piston - note there are many other factors that determine compression ratio other than the piston.

Camber kits are a must on lowered eclipse's but not so shure your gonna fix your bouncing problem. Think better coilovers and better struts.

Trust me your not the first to gut a cat.