Pressure Regulator recommendation

I had just the electric, and it worked fine. However, I got tired of the noise! I isolated, insulated and rubber mounted, and still got the noise. The Mechanical was installed to get rid of the noise. For the street, and short WOT blasts, the mechanical is enough. However, for sustained WOT (more than 5 seconds) it leans out. With the Electric on, it will sometimes flood the carb, especially at WOT over 5000-6000 rpm. The electric is nice for the priming of the carb after sitting a week or two.

I saw the Quick Fuel unit, and especially liked the price. However, I was not sure if it worked ok, and would not restrict overall fuel flow.