Fuel Line size

[uttommyb]

I have a 1975 Chrysler 75 HP that has a fuel line that appears to have a 3/16 ID with a 7/16 OD . Can I increase that to a 5/16 size line without affecting performance?

 

[Frank Acampora]

Re: Fuel Line size

5/16 id is acceptable for a three cylinder but you can use 3/8 id fuel line to ensure free fuel flow to the fuel pump.