Need help! What line is this?

Plan to keep it the v6 to fuel injected. Just can’t find a replacement line for it. Was just wondering if I could make it a clamped line with new fuel hose
I would not be opposed to doing that since the Buick GN fuel sender didn't use the saginaw fitting and operates at a higher pressure than TBI does but if you're gonna just cut the fitting off, I recommend you do step one of a double flare to create the raised bubble, use a fuel injection rated hose and double clamp it with clamps made for efi not hose clamps. Btw...all the TPI retrofitters probably at one time had to address this.

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Plan to keep it the v6 to fuel injected. Just can’t find a replacement line for it. Was just wondering if I could make it a clamped line with new fuel hose
Fuel injected or carbureted, you’ll have a pressure line coming off the sending unit and sending fuel to the engine, and a return line coming back to the sending unit. The pressure line should be 3/8” and the return 5/16”. The return line is the same regardless of whether it’s a FI V6 or Carbed V8
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Typical what happens when you don't change out your old lines to new...

Electric FP, TBI 9 - 13, built in regulator spring is set to 9 psi. TPI was typically 15 psi. So if you use a TPI unit, I think still available at Rock Auto, you be ok. The FP Regulator built into the TBI unit will send any excess or above 9 psi supply. Back to the tank.
 

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Rock Auto for El Camino, not have. But attached Regal the tanks are similar depths.
 

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