I'm not going to get into all of this; It's already covered to an exhaustive degree in previous discussions and articles in the FAQ section... time to put on those reading glasses and exercise that mouse hand.
It would be helpful if in the future you included all the significant details concerning your vehicle; standard equipment, mods, planned mods. The upgrade paths for a naturally aspirated engine are largely different than those for a forced induction system.
Good luck with the car!