Damn, people are really talking here lol
Plain and simple. DO WHATEVER YOUR GUTS FEEL LIKE DOING!
NATURAL ASP KA24
*is expensive
*hard to reach high hp goals.
*but less problems from cops
KA-T
* cheap
* can easily get 220-250hp from simple turbo kit
* lose mpg
* risk from getting caught by the PoPos
V4/V6/V8 swap (SR, RBs, VG, LS1, LT1, LSX, VQ, etc, etc, etc....
* easy hp and torque
* expensive (depends)
* can NOT be slick with that... (cops)