'72 Demon, Stock Tank - Elec. Pump & Filter mounting?

Is there an advantage to having the regulator on the return line?
I always thought you wanted it regulated just before the carb?
Understood on the trans exploding, and understand now going up the inner wheel well.
Nice work, definitely gave me some ideas, I really appreciate the replies!
No it doesn't matter where you mount the regulator in the system. As long as your using the right regulator. This is the one in the picture.
Holley 12-803BP Carbureted Bypass Fuel Pressure Regulator