Car trouble please help!!?

Hi i have a 2000 Chevy cavalier. I have several problems with this car...its a cavalier. Well its my only car that i can afford epically with the gas being so high. One of my major concerns is there is a loud knocking noise when i step on the gas accompanied with major vibration, it sounds like the motor is hitting up against something. I have changed the motor mount the toque mount and the transmission mount still does the same thing. There is also oil in my blow by but none i can see in my air filter what does that mean, and what do i need to do to fix it? I have already replaced the motor in this car because my timing chain broke and the person i sent it too said it would be cheaper this way. I have no idea how many miles are on the motor just the vehicle itself. I also would like to know what are some cheep performance parts i could just slap on to make this car tolerant it is a 2000 Chevy cavalier...of course...2 door coupe with just a standard 2.2L. If you could also help me out with a website that sells cheep performance parts as well that would be awesome. Thanks for all your time.Car trouble please help!!?
it sounds like this engine is on the way out putting parts on an engine that might be on the way out is not going to do anything but throw your money out the window go to a couple of shops and get an opinion and go from thereCar trouble please help!!?
Please fix your cars problems before investing money into modifications. I highly recommend an oil catch can because from the sounds of it, you could really use it to prevent the oil getting into your intake which undoubtedly is going to rob you of fuel economy not to mention that if the filter becomes saturated then you are going to see more problems.Car trouble please help!!?
Good grief....you have a serious problem with this engine spewing out oil and making loud knocking noises and you end your question with %26quot;help me out with a web site that sells cheap performance parts?%26quot;

Again.......Good Grief!