Heat soak?

[J-440]

Just installed new PTFE lines and was careful to keep them away from the exhaust heat. After warmup and a drive around the block (about 20 minutes), my car sputters and dies. Even when I stomp on the gas, it falls on its face. She fires right up though but I have to coast home barely touching the throttle. At first I thought one of my lines was too close to the frame rail and was kinking so I moved it and the pump (external mount) over about 2 inches. Car is still doing the same thing. The entire fuel system is new including the pickup in the tank. I'm wondering if the fuel is getting hot. The lines going to the fuel rails are insulated but I do have a small section that's exposed and it's resting right under the intake.
Here's a pic of the fuel line that I think might still be kinked? Thanks as always for the advice.