im not trying to be a dick but it doesnt seem like you know that much about boostin cars theres alot of things/time/money you have to do to have a boosted car.but i wish you good luck to what ever you want to do to your car.
dont buy a kit off ebay.its just a waste of time and money!
and a k20 for 1200?? eaither that guy is drunk/high/really stupid or hes not a good friend.