I second the 87+ tanks, my 95 4.8/4l80 gets starved of gas under hard launches will 1/2 or less tank due to the gas all going to the back. Full down to 1/2 is fine.
Those tanks are setup to run a TBI motor on 10-14 psi fuel pressure.
There are ways to make a bucket that goes around the pump to help and there are types of foam to go around the pump. But I would go with a cell, or sump the 87+ tank and run an external pump. Just my opinion and advice.