E85 vs 91 for street

Most all Pump gas has at least 10% Ethanol if not 15%.
You should already be using Ethanol SAFE fuel system components and whenever new parts are purchased, it'd be wise to ensure they're E85 safe.

My Swinger is getting modern Nylon fuel line and oem quick connects for its supply and return.

VERY Lightweight and E85 Safe.
I've used this Dorman kit 800-300 on several other cars.

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