Return line should be bigger than feed line so the the regulator does its job. An equal size return line can cause x amount of pressure by itself rendering the regulator useless
Placing the regulator after the carb insures fresh cool fuel at all times to the carb
Its not about the fuel system making the car faster. Its about the life of the pump. Not having a single fuel related issue when its 1 million degrees outside. There is always someone from Michigan that says its a worthless upgrade. But down in the south it's the best thing you can possibly spend an extra $100 on
I fully didnt expect it to go faster, i figured the black pump gave it all the fuel,it needed in the first place. Just made the mistake of listening to others tell me my system was inadequate and should be upgraded
It never failed, the pump still worked fine after years of use when i upgraded( foolishly)
It gets hot up here too. 90 degree days arent a rarity. Hot is hot. Most racing and street driving was done in the summertime.
