non-supercharged power building

[chiaronate]

i know what naturally aspirated is. i guess i didn't make my post clear enough. what i meant was, i was wondering how to make good horsepower (350-400) and still have good street manners, such as good low-end torque and be reasonably good on gas. can i achieve this without artificial aspiration? or would it be better to bolt on a supercharger to maintain good low-end torque below 3000 rpm.