Im a newbie in the world of cars and had a few Q's

What the heck is the diff between the engines i.e. h22 and f23 and which one does my car have?

How possible is it to make my car run high 14's on the track w/o an engine swap? What would i need to do to get there?

I just ordered and AEM CAI and wanna work on the h/e but i've heard that changing the header will have almost nill effect on performance is this true?

which dual cat back system is good?

how effective are pully systems and what exactly do they do?

Also wanna thank everyone on the board learnin alot of theory... now gotta put all that to use under the hood.