Is it more beneficial to have an adjustable fuel pressure regulator when dyno and tuning an all motor set up? I have a B16A with I/H/E/TB/IM, Cams, valve springs, and retainers. Im really saving up as much as possible for dyno tuning because its $160 an hour. I just wanted to know if it would make a significant difference as far as horepower goes to go out and spend a little extra and get a fuel rail and adjustable fpr.