Im running a a1000. Works well with 20 pounds of boost at 40psi with 60lb injectors. If you ever swtich to e85 you will need the bigger one that they sell. The a1000 can not keep up on my car with the new 120lb injectors with e85. The pressure started to go backwards after 5000 rpm
I'll soon be running fuelab filters, pump, and regulator. recommended by Jon Lund, as its a brushless in line pump that won't get hot like most inline pumps on the market. I'll have to wait for what to expect being that nobody right now is running this in a modular that i can think of.
I run the A1000 but until recently they would only last a yr. I had an extra one lying around and sold it to a buddy with a billet 5.0 4v and an 88mm. He's now running two A1000s and its been working like a champ.