Running Fuel Lines - Help please

[Loz]

I'm at the stage where I need to install the fuel lines on my 70 911T. It's a US car in case that makes a difference.

What I need to know is what I'm missing. The photo below shows everything I can find from when the car was taken apart by myself around 12 years ago. I also have the original pump (not pictured) that will need taking apart to fit a new main O ring. If anyone has a link for a rebuild kit for that, or particular sizes required, I'd be very grateful for the info.
From some of the YouTube videos I've watched, they seem to have two hard lines in the tunnel. I have one but can't find or remember removing the other.
Also I've included a photo of the engine as it sits. If there's anything missing from the fuel system that should reside in this area, please let me know.

Much appreciate all help offered.

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[SeanP]

A 911T on carbs only has one line running through the tunnel if I remember correctly.
MFI has a flow and return line.
The long straight one runs through the tunnel. The second pipe with the 90 degree bend sits under the rear seat. The third pipe with the Tee feeds the carbs

[Loz]

A 911T on carbs only has one line running through the tunnel if I remember correctly.
MFI has a flow and return line.
The long straight one runs through the tunnel. The second pipe with the 90 degree bend sits under the rear seat. The third pipe with the Tee feeds the carbs

That's great! Thanks Sean!
I thought it was old age creeping in. Trouble is I spent at least two hours hunting the workshop today for the second hard line
So nothing missing that you can see?

[Gary71]

My carb 911 has feed and return hard lines… does it depend where the fuel pump is? Mine is on the rear crossmember.

[Loz]

Gary,
Stretch sent me a useful link that gives varying opinions on the hard lines, with a mention or two on pump and positions. Hope this helps.

https://share.google/iBgSEFCEtWwI1j88L

[SeanP]

Should be a Hardl style fuel pump for a 1970 T with only two ports.
Do you have a picture of your fuel pump?

[Loz]

Sean, I've just grabbed this photo from Pelican. This is the pump I have. 3 ports. It's mounted at the front right by the tank.

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[Gary71]

That stacks up with just one tunnel hard line. Return comes straight off the pump back to the tank