Apparently the EFI in tank fuel kit from FFR comes with J30R9 braided rubber fuel lines from Precision Performance inc. From what I've learned so far, J30R9 is more impervious to pump gas chemicals than CPE material but still inferior to PTFE fuel line.
Has anyone else researched J30R9? From what I've read so far, its still going to degrade over time, but how long? There's something about installing fuel lines with a shelf life that makes me nervous.