If it's done right it will be regulated, anyway. The source side line size has one job and that's to keep up with the demanded volume. From a practical standpoint, the debate between 5/16 and 3/8 is somewhat moot unless you find yourself running out of fuel down the track at WOT. Jim -----Original Message----- From: 1962to1965mopars@xxxxxxxxxxxxxxxx <1962to1965mopars@xxxxxxxxxxxxxxxx> On Behalf Of 62-65-mail-list-club@xxxxxxxxxxx Sent: Friday, April 08, 2022 13:42 To: 1962to1965mopars@xxxxxxxxxxxxxxxx Subject: Re: fuel sending units. 65 B-body If the Max Wedge and '64 - '65 Hemi cars used 5/16 lines, that would reinforce that argument. I just recalled reading that, irregardless of the fuel line size, the needle / seat assembly / jet are relatively tiny. Much smaller than the 1/4" fuel pump size that Paul L. pointed out. Thanks, Gary H. > -------Original Message------- > > The 5/16" was pretty much the standard item, the 3/8" , I think was > made aftermarket to satisfy high HP needs , and mods, of today > > Jimmy > > On 4/7/22, 62-65-mail-list-club@xxxxxxxxxxx > <62-65-mail-list-club@xxxxxxxxxxx> wrote: > > > > What fuel line & sending unit is in your '65 now? Is it factory? > > > > Thanks, > > Gary H. > > > >> -------Original Message------- > >> > >> > >> Well its spring now so I cant use the cold as an excuse to avoid > >> working on the coronet. > >> I want to drop the tank and see how she looks inside and I thought > >> maybe I should get > >> a new fuel sending unit. They aren't that much but I am running into > >> two different size > >> types. One says 5/16 and the other is 3/8. I imagine that is either > >> the size of the metal tube or the size of rubber fuel line needed. > >> Were the 5/16 for 6 cylinders? What were the 3/8 applications? > >> Thanks, > >> Neal Zimmerrman, Eugene Oregon. -- > >> > > > -- -- -- Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. -- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. http://groups.google.com/group/1962to1965mopars?hl=en. --- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to 1962to1965mopars+unsubscribe@xxxxxxxxxxxxxxxx. To view this discussion on the web visit https://groups.google.com/d/msgid/1962to1965mopars/20220408174135.59088.qmail%40server309.com. -- -- -- Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks! 1962 to 1965 Mopar Clubhouse Discussion Guidelines: http://www.1962to1965mopar.ornocar.org/mletiq.html and http://www.1962to1965mopar.ornocar.com/general_disclaimer.html. -- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. http://groups.google.com/group/1962to1965mopars?hl=en. --- You received this message because you are subscribed to the Google Groups "The 1962 to 1965 Mopar Mail List Clubhouse" group. To unsubscribe from this group and stop receiving emails from it, send an email to 1962to1965mopars+unsubscribe@xxxxxxxxxxxxxxxx. To view this discussion on the web visit https://groups.google.com/d/msgid/1962to1965mopars/003701d84b71%247b88a510%247299ef30%24%40att.net.