Okay guys, so i outright bought a 4 door 1997 honda accord lx 2.2l 4cylinder vtec, my parents always bought my car so i really didnt take care of it nor do anything to them, with this being MY first car i want to make it sound and look good. Long story short, this is my project car. Anyways, i bought it with a check engine light, took it to autozone to get the codes and my egr values are blocked, (how do i unclog them?) my downstream o2 sensor, (already replaced it) and my tdc sensor failed( what the hell part do i need to get to replace it). i took it to a mechanic and found out that i have gotten a motor swap, so now im thinking if, whatever, is wrong with it is more then or close to a new motor, what is the biggest motor i can put into it as a performance ?