F M L...... but wouldn't have it any other way☝️

Sounds like a fun trip, LOL. What is with the manifolds on that engine, are they marine? Looks like a marine intake the way the carb flange is tilted.
Us supposedly an rv 23,000 mile 76 were loading the motor into the truck now once I get back home I'm gona look up the numbers see what it's all about but got it for 400$