Hi all, finally getting some motivation to work on the car. I am looking at new fuel lines and assuming if I buy 3/8 feul and vapor line I should also purchase the 3/8 sending unit. This barracuda,s feul lines were pretty rotten and I think they were the factory 5/16 lines but do want to go bigger as there is lots more power in the 340 and maybe one day drop a 440 in it, thanks Tim