420a i know

don wanna swap jus wanna keep the engine and work with it..ok i posted like 5 threads already all with diff questions so ima make sense and put the rest of them all in one.
1. what are the benefits of bigger injectors?
2. what are the benefits of better or bigger cams?
3. whats 9:2:1 9:1 pistons whats all the numbers for?
4. i jus installed coilovers its sitting really low and bounces like a motherfucker someone told me to buy a new camber kit and get an alignment. what should i do i jus don wanna bounce everywhere. but i like how low it is.
5. i was doing some experimenting with my friend his brother gutted the cats on his honda (gsr) exhaust so its kinda like strait piping i did it to mine and feel the differnce in power are we the only ones who did this or what it works!
-thats all for now im sure ill have more later...