I recommend an intake duration of at least 230 @ .050 on a 114 lobe separation.
Wider lobe sep has wider power band and works better with low gears.
110 lobe sep has a narrower power band. Better for high gearing and keeping engine inside power range during shifts.
Prefer 3.23-3.55(3.73 with big/tall tires) for street. 3.73-4.11 for drag racing.