Fueling & Injection - will 1 255lph walbro intank pump be enough for 650 rwhp?

I am going to dyno the car on 2/12 and expect to be somewhere between 600-650 rwhp. I have 60# mototron injectors and a 255lph walbro intank fuel pump. I know I have enough injector, I was wondering if I will need a bigger fuel pump, a second fuel pump, or will the one 255lph walbro be enough?

No. Not safely for sure.
I had to go duals.

if you were NA or NA with nitrous I would say probably....but if your F.I., then it seems above 550-600 rwhp may people have to do more than just s single intank walboro...I am running 580+ rwhp through an auto with a 4000 stall (which had bad stator at the time) on a Mustang Dyno. This dyno reads about 10-11% less than a typical Dyojet (place has both). I would be around 630+ rwhp on a dynojet, and I am running a single Walboro intank with hotwire kit and big alternator (if that helps any), with a 382 and nitrous.