it'll all feel slow with a LS gearbox. if you want to feel faster, get a b16 or gsr box, and spend a WHOLE LOT OF TIME learning about various engine builds. it will feel sooo nice in the meantime, while you research what you want to do. a stock gsr is WAY cheaper than building your LS into a LS/VTEC properly, and you dont have to pay for the custom tuning right away- just run a p72. There are, however, many advantages to building a custom engine...you just need to engineer it right.