well, considering the returnless fule system which excludes the use of a FMU, I'd say no, the stock 19lb injs are not near enough.
You'll probably want to upgrade to 36lbers and most likely the intank fuel pump will need to be upgraded as well. I can tell you from experience, you don't want to skimp when it comes to the fuel system and power adders. Too much fuel is a whole lot better than not enough. Find a good tuner and get his recommendations for the power level you're trying to achieve.