Hmm 345 is not easy to hit by any means n/a on a 3v. You would need every Bolton in the book. Lts, o/r x pipe, catback, CAI, throttle body, u/d pullies, and a sick dyno tune.
A bud of mine has FULL exhaust and cai with a canned tune and made 300rwhp.
You gained almost 100rwhp N/A over...