I agree .. years ago I went to a Product Engineering pump with a built in filter and built in return to the fuel cell , -10 hose to the regulator and dual -6 to the carb from the regulator it didn't go any faster than the old Mallory 140 I had. I have ran Mallory regulators for years , I had one go bad a few months ago and found out they are no longer available , I ended up going to a Holley