ok all my mods are in my sig, now i plan on getting some shorty headers and a 77 MAF so what kind of hp numbers should i be makin? and what kind of 1/4 mile et would i get with good driving on my 555r's??? what other upgrades should i get to hit the low LOW 13's? i know H/C but i dont want to spend the money, and nitrous isnt somethin i want yet either.