it will be fine. the usual fuel pressure is around 43psi and maxes around 45. the focus pump will do just fine for most. i did a little research on the focus pump and a few have had problems with high rpm's and higher psi with their pump. seems the focus pump dont like to give more than 45psi for a prolonged time. i am still on a stock fuel pump and sprayin 125 thru my plate, my fuel pressure is constant 43-44 psi.
not to be a dick, but THE CORRECT TERM IS NITROUS, N2O, JUICE, ETC. nos is a brand, and is not a shorter version of nitrous!