Regarding injection timing, here is something to consider; with a smaller orifice such as you have there will be a lack of fuel density in comparison to a larger orifice, this can impact the effective timing value regarding your setup. Injecting the fuel too early without sufficient density to penetrate the cylinder pressure can actually be a negative, for certain instances the orifice size chosen isn't always about the flow value.
This isn't to say your current injector isn't capable of reaching your goal, rather that the "more is better" mentality isn't always the case. And in my experience the only way to verify true advance is with a timing light.