Really essential to have a helper when installing Tunnel lines.
I use a M14 Female coupler that helps a great deal when replacing Tunnel lines.
I am happy to send one if needed, just ask.
len.cummings @ verizon.net
Oooops, I now see you have a 75 911, and this is a whole different story. Unless you now have a Front Pump there IS NO Pressure Line Through the Tunnel.
Fish line is needed here, as it helps guide the old out and the new in.
AND, even more important you have that helper.
I am curious, what actual Tunnel Line are you using that "Kinked" during install?
Len