This is a TERRIBLE and dangerous idea. This is not something you should even be considering on a car that will be driven on the street or track.
Buy 3/8" lines from Inline Tube or Fine Lines. They unfold pretty easily, they take a little patience to install back along the factory routing because they are a single piece, just like the factory lines and the larger diameter makes some of the clearances tighter. But well worth it. Even running stainless braided hose the whole length is not a good idea IMO, even if it will pass tech.
And yeah, while 3/8" lines are nice if you're under 500 hp it's doubtful you'll actually need them. I put 3/8" stainless lines on my Challenger and my Duster, 3/8" senders too. But it was more in the name of never having to mess with them again in case i made more engine upgrades than something I absolutely needed.
