Fuel pumps
Magna Flow is a good product, top of the line most say, I have a bg280 for my 505 and if I really want to add juice, I should upgrade to a little bigger pump. I also have done this simple test and told many others as it holds true to test. Once you have the pump on and working, take off the main line prior to the reg., drop that into a 1 gal jug, or a 5 gal jug and mark off 1 gal on the side. Get a stop watch or use your wrist watch and start your pump and count the time off up to 30 seconds. if you have enough pump to fill the 1 gal jug in less than 30 seconds, you have enough pump to support a 10 sec. racecar.
I have helped many a racer with this test find bad fuel pumps, plugged fuel filters and leaks, and it just works.
I have a filter between the fuel cell and the pump, and another filter before the reg. and it works well.
John