Placement and mounting of fuel and/or nitrous regulators is very important for optimum performance. All regulators should be "soft mounted" to isolate them from engine vibration. "Soft mounting" can be accomplished using rubber isolators or simply suspending the regulator from the fuel lines. In addition regulators should be mounted in front of or near the front of the engine whenever possible. This location will allow the low pressure fuel flow from the regulator to work with the G- forces when the car is launched.