Fuel pump info needed. 2015 Yukon

[Turbo T]

Matt Sanford is the tuner. He did say I could get by with one pump. But it would be maxed out. Just trying to get what I can out of it. With out adding port injection. I do appreciate the help.

 

[Turbo T]

I believe I’ll start with one 535 and see how it goes. Was wondering how the factory pump controller would work with one or two pumps?