Plumbing for a Dominator

To do this right you need to feed that monster. Your line from the pump needs to go to a pressure regulator with 5 ports. 1 port is "in" fuel flow. 1 port is the "fuel return line". Make this the same size as your supply line. Two ports go to the carb fuel bowls. Your last port goes to the fuel pressure gauge. Mount this gauge "outside " your car. Do not run a gas line inside the cabin.... You will have to use some sort of covered " NHRA approved" line and fittings to race this car. NHRA only alowes 6 inches of rubber line in the whole system. Check out peoples cars pics here and you'll see how to do this.

Thisis very helpful, thank you! Now I'm making sense of what I'm seeing. And clearly, if my goal includes preserving the engine, then a lean condition is the last thing I ever want - so the return line seems vital. Thank you for this understanding. I found the below pic on the FBBO forum, showing exactly what you're saying. If anyone has other pics to recommend as good practice or vintage appearance, I'd appreciate it. Now for some forum searches on recommendations on regulators.

https://www.forbbodiesonly.com/moparforum/attachments/dominator-jpg.303429/