brake lines 7? K20 and proportioning valve

[crosby]

Hi guys! Are brake lines generally single flare (on my truck?). I cleaned up a decent frame and painted it black, redoing my truck on the "new" frame. I can't remember which lines go where on the proportioning valve either, although I think I can guess by the different thread sizes on it. Wait until I start on the EFI fuel lines. I am officially intimidated by that project, especially since my truck had dual tanks, and now I'm just running one. Plus, I am reusing my sending unit and pump (etc.) since I can't waste the money on new right now, and the better of the two (usable) is for the other side, so the pipes are pointing to the outside of the truck. I am planning on looping the fuel lines around, is that okay? Thanks very much for any help you can provide!!

Jeff