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Simple fuel supply for LS swap with AN-6 adapter fittings included.
Your electric fuel pump works continuously & this bypass regulator passes excess fuel back into the tank so the pump can run freely. This filter-regulator is commonly installed near the tank so that only a short return line is required.
This is a popular fuel supply solution for fuel injection (EFI / FI) retrofits and for swaps to modern engines like the GM Gen III and Gen IV "LS" V8s.