AC Delco is the only pump I'd put in. And clean the tank inside and out. A lot of dirt and grit gets trapped around the outside of the fuel pump. If you don't clean it off it can fall in your tank when you take your pump out and kill your new fuel pump. I strain the gas through a filter before putting it back in the tank.
Here's the thing about AC Delco. Three levels of parts. Used to be GM, professional and advantage lines. Now it's GM original equipment, AC Delco Gold and Silver parts. GM and Gold parts both are usually made in USA . AC Delco Silver is a value line and most often manufactured offshore. I try to stay with the first two. You can check part numbers on acdelco.com.
It is really disheartening the way the aftermarket parts situation is. Sure you get a lifetime guarantee with a lot of them but who wants to spend their lifetime replacing the same parts. Just last weekend, installed a Cardone steering gear in my son-in-laws Tahoe because we couldn't find a GM one. The Cardone part was bad out of the box. Actually replaced it with a Duralast and it fixed his problem. Desperate times lead to desperate measures. I cannot imagine what it's like to be a mechanic and having to deal with that on customers cars. How many times can you tell a customer that it's bad parts that are the problem before they start to think it's the mechanic?