Grapejuice1998 Posted March 17, 2016 Share Posted March 17, 2016 I have a 1970 SS 454 with the dual line fuel system. At some point the tank was replaced and the smaller, secondary fuel line was deleted. I have recently converted back to a dual line pickup and pump, but I'm having trouble getting it to pick up fuel for the first time. Which leads to my question: Are both the 3/8 and 1/4 in lines feeds, or by chance is the smaller one a return? <scratches head> Quote Link to comment Share on other sites More sharing options...
502ci Posted March 17, 2016 Share Posted March 17, 2016 Smaller line is the return. Quote Link to comment Share on other sites More sharing options...
Sam (Bones) Posted March 17, 2016 Share Posted March 17, 2016 Quote Link to comment Share on other sites More sharing options...
Grapejuice1998 Posted March 17, 2016 Author Share Posted March 17, 2016 At the pump, the inbound smaller line (return), looks to have some type of reducer in it. Is that normal? Quote Link to comment Share on other sites More sharing options...
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