return fuel line will be better on a boosted car
the radium is return-less, it bleeds off pressure back into the surge tank.
to quote phunk
"fuel pressure drop at high power is a result of the pressure drop that occurs across the fuel lines. By regulating fuel pressure at the pump, rather than at the rails, you will always have fuel pressure drop as HP goes higher and higher."
basically you want the regulator at the rails, not the pump.
radium will handle your fuel starve issues, and fine if you're not pump a lot of fuel
but the cjm return fuel system + anti starve canister is going to be better for higher HP
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