Disappointing dyno results
lots of great suggestions here, paramount with starting with a tune and going from there.
however, something i haven't seen is, have you verified the camshaft specs? i know it's been degreed, but have you checked the actual lift numbers and criticals? mistakes happen in grinding. mistakes happen in packaging. mistakes happen in shipping.
given the specs that *should* put down numbers that are very similar to a stock 340, and given the disparity in numbers there something is fundamentally wrong.