I guess it depends on your definition of easy?
I think the 318 would fall noticeably short of 350hp, but a .040 over 360 with an XE 268, 9.25:1 comp and x heads might hit 350 hp.
Notice that cam peaks at 5000 rpm in the 3.5" stroke chevy.A 340 may hit it's peak at 200 or 300 rpm higher with the 3.31 stroke.
....where are you AJ?