[HWYSTR455]

PFTE goes bad too, and it's recommended it be replaced at intervals. 9 years ago is roughly the time when AN manufacturers switched to new type hoses, to deal with eth. It took some time for all the old stock of hose to get cycled out of warehouses, which made the community recognize the issues.

The rule of thumb is to replace AN hose every 8-10 years anyway, believe NHRA says every 5, so it's not life-long stuff. Yeah, people get away with it, but I have also seen braided line seep right thru the braided mesh.

PFTE is expensive, and total overkill for a fuel system, unless you are doing E85 or some other special fuel. It's harder to assemble, and doesn't route/bend as easy. I personally see no reason to go to that extreme, and I am pretty much an overkill kind of guy.

Regardless, that is another reason to run as much as possible hard line, because of the service interval. A few feet is better than replacing a few 10s of feet. Kills me when I hear people recommending to just run braided hose the length of the car. Not to mention the potential 'hammer' effect in a fuel system, especially EFI. They even make dampeners for the issue.

I did an EFI conversion in the late 90s, and at that time I did considerable homework on the subject of fuel systems. I called and talked to many authoritive 'experts' on the subject, and had many theoretical debates. (I'm OCD for sure!). The take away from those efforts lead me to where I am now, and feel the advice in general is acceptable. If people are in question, and have a little time for the planning stage, it's best to reach out and talk to people in the industry. Most are happy to spend a few mins discussing, especially if you have more than a basic knowledge.

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