Don't buy a F20B and boost it...that is the complete opposite of what it was made for. If you want a cheap swap that'll require a lot of fabbing on your part just get a F22B (DOHC non VTEC JDM Predlude motor). You can bolt a DSM turbo kit to it and make ~250whp and 230ft/lbs. The motors only cost around 900 dollars, but you'll need the hassport h22 motormounts and shit for your car since it isn't supposed to go in there.