I'll send you a photo when I get home or I'm sure Paul could post one. It may be the one that Showcars sent u but like the PS pulley, you didn't install it correctly and where you have it you are going to experience vapor lock. The line should not be routed down between the water pump and the block as yous appears to be, it should stay on the outside of the pump. If you look at the photo that I sent you concerning the PB hose you can see a little of the gas line and see that it doesn't go inside the water pump.
Any pics would be appreciated. I don't need problems that I can avoid. That line seemed to fit best on the inside. Only had to make a small adjustment. Funny thing, my '64SS with the 327/250 came with the pump to carb. line taped with some type of heat repellant material. It was shiny silver on the outside and sticky stuff on the inside. This line was also between the wp and the block; like I have now. Never really understood why the po did that. Maybe he experienced some vapor lock. Not sure. It was a terrible/sloppy job of putting that tape 0n, so when I converted the 327 over to 300hp, I cleaned this line. Reinstalled the same way I took it off. Since then, I've been to many shows, events and rides. Never experienced vapor lock that I am aware of. I'm kind of thinking out loud here, but when moving, wouldn't that air flow over the engine be enough to avoid vapor lock. I can see it possibly happening on a hot day, idling with no movement for a long period of time. Anyhow, I'm looking forward to looking at some pics and doing it correctly. Thank you, Carmine.