You shouldn't eliminate the roll over valve. It has nothing to do with the fuel supply line. It's there to keep liquid fuel from leaking out the vent line in case of, well, a rollover. If the tank vent system is plugged, it's a 99.9% chance it's not caused by the valve, which on your car is in...
That side nipple is a vapor bleed, to help reduce the chance of vapor lock. There is, or should be, a .060" orifice in the nipple. If it's missing, like in some cut rate filters, it could cause problems. With the orifice, very little to no liquid fuel will go back to the tank.
'76 to mid '79 had the rollover vent valve under the passenger floor, near the cowl. After 04.02.79 it moved to the top of the fuel tank. Does the same job of preventing fuel from running out the vent line if the car somehow ends up on it's roof.
DMPS-4538 Mopar 1976-80 Roadrunner Volare Aspen F-body Fuel Lines - dantesparts.com
Inline Tube used to have the fuel and vapor lines, but they're not listed anymore.
This outfit has the 352 spacer, but only 1 it appears, and no 4014353. Can't get the darn attachment to post. Enter Mopar 4014352 in the search on Ebay, and scroll down 3 or 4 lines.
I had to put the spacers in a few years ago, and it put the camber, and also the toe, exactly back to where...
It'll be on a vacuum tree behind the carb. Similar to the pic, but your's will have more nipples and the brake booster hose. I have a big block without power brakes, but you get the idea. The tube connected is for the HVAC.
It wasn't meant as an insult. Guess everything makes you butt hurt, and this isn't the first time with you so,,,,,well, I'll just stop there. I'm outta here.
Sounds like you are seeing the parking brake cables. Without photos, so going by your description.The rear hose goes from the brake line vertically to the rear axle, and is attached to the axle tube with a hollow bolt, which is also the axle vent.
In case you're not aware, there are poly spring isolator pads available, if needed or wanted.
For U-bolts, you can get them at a parts store. Match them up by diameter and center to center spread distance. In most cases, you will need to cut them to length as they're "universal" parts.
You know what's worse? It's when you look all over for that tool you just had in your hand, and then find it,,,,,,,,in your hand.
That's when you know it's time to shut off the lights, lock the door, and go in for the night.