im a turbo guy so i say boost it. but i will say that i had a n/a ls vtec a few years back that was built and it was alot of fun and felt way different than a boosted set up it was way more responsive and gave me the oh damn feeling when i layed into the throttle i would say it was bruatal off the line and kinda hard to hook up but nothing like the power i get from turbos but still fun hahahaha
and if your lookin for 200whp on the b20 if you go boost you will go far past that goal i made 200 with my dohc zc and 7 or 8 psi it was a while back. boost it boost it!!!!hahaha
