Eh....sorry, but this doesn't make sense. That would mean you could run a 1400hp engine with your little fuel pump.
To the OP, check the regulator...this is more than likely the problem. I have run a Holley Blue for 10 years, and unfortunately the regulator that comes with the Blue pump is not that good. The Blue pump is good to about 550hp (this is why I just switched to a Holley Black pump).