2nd the II Much stuff. Nice piece. Also used for Diff venting.
While I have heard of return style system issues, I haven't run into any. For simplicity, I build them with the return back by the filter/ regulator nowadays. Biggest issue I've run into fueling wise on so called built cars is improper pump & injector sizing along with inadequate wiring for pump. You don't have this issue Dave.
OEs went this way for cheaper cost (less material & labor) & to eliminate extra heat being added to the fuel.
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