How big a fuel pump should i get?

I am going to drop a 347 shortblock into my car over the summer with the mods in my profile and I am trying to figure out exactly how big a fuel pump I will need. I am going for 400 whp and then later down the road I will probably add a 150 shot of nitrous for the track. So what fuel pump should I get to feed my upcoming beast?
 
  • Sponsors (?)