FiTech EFI system

I was on the phone with fitech today. When I installed the pump and return line. My return line goes into the original pickup which is creating bubbles in the fuel. The new pickup takes from the bottom of the tank which I had bungs prewelded when I made the tank. The new pickup is likely sucking in air bubbles from the return since they are very close to each other. The pump was hot and did sound horrible at a few points in the drive. So I believe the return bubbles are causing my issues so I plan to re plumb the return line and hopefully fixes the issue