Not necessarily. I had a Facet and a fuel pressure regulator set at 1.5, plus I adjusted the float level in the carbs and still got bogging in the whoops. The CV slides are vacuum operated, so there is nothing holding them up but a minuscule amount of vacuum pressure. One good jar from a jump and they drop, chopping off pressure. The few times I had the balls to not close the throttle and hit the whoops at full RPM/throttle I didn't get a bog, probably because there was more pressure holding up the slides.