Fuel system upgrade
I'm looking into the final steps before ordering my fuel system and wasn't sure if it's mandatory to go return style with a high hp application. Im not 100% sure how the stock returnless style works. Do the pumps stop pumping once the fuel pressure in the rails reaches a certain level or do they constantly pump. I could see where if they constantly pumped it would cause problems with dual pumps. I've seen return and returnless kits and just need clarification on the subject.