You don't need $3000 to get over 180hp. Put a 75 shot of nitrous on your car and spend $500.00
=]

If you want a new engine, and you are shooting for 180hp, toss a GS-R engine, apexi ws catback exhaust, some comptech header or something, pullies, and a 60 shot of nitrous.

That'll give you some good numbers.