Brass compression fittings should be just fine in a TPI setup, it's only 50ish psi. Houses run more than that in their plumbing systems with the same type of fittings. In fact, Dorman supplies them with their fuel line repair kits. If they weren't safe to use, wouldn't Dorman have a huge liability on their hands by supplying them for techs to install with their parts?
BTW, I'm only stating this because I used the Dorman lines/compression fittings when we did my TPI swap many miles ago, and they're all just fine. I haven't had a problem with 'em.
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Seeya,
Steve R. in North Jersey
'16 Go-Mango Dodge Charger R/T. It's so good to be back in a V8-powered, RWD car!
Former Toy - '88 Monte SS - had lots of mods...
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