Fuel Line Return
If you are running a return regulator close to the carb you don't need one.
But they do work if you don't have a return regulator. That type of return is what "I started with" to prevent boiling / vapor lock. I used 1/4" which was not large enough when I stepped up to EFI. I used a Wix 33040 / 33041 filter which has a built in return orifice
"This type" of return was first used (Mopar) on HP 440 and 426 cars AND THEY WORKED!!
If you are running a return regulator close to the carb you don't need one.
But they do work if you don't have a return regulator. That type of return is what "I started with" to prevent boiling / vapor lock. I used 1/4" which was not large enough when I stepped up to EFI. I used a Wix 33040 / 33041 filter which has a built in return orifice
"This type" of return was first used (Mopar) on HP 440 and 426 cars AND THEY WORKED!!