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just an fyi for carb tuners like me I think the x oring loose there elasticity and sealing power causing tuning problem.



Rubber O rings for 4" fuel delivery hoses shrink due to ethanol. It may rot the new O rings.



Yah I understand that but Ill now be able to search for some oring that are resistant to fuel now that I know the issue and size I need. Have any suggestion to what will hold up as it seems even my rebuild kit ones didnt hold up as well as I thought. Will the hydraulic hose ones that nacho used work? Or is there a certain type of rubber I should be looking for?

1973 Charger, former SE, former auto

I'm not trying to be difficult, it comes naturally....