I almost feel as though theres another issue besides injectors. I can still get a dark smoke haze in the 10-15 psi range, but cant seem to push past the 15 pounds to clear it up.
Not sure if this hass any effect, but when I did my conversion, I put an industrial exhaust manifold on, which are round ports. my motor has rectangular ports, so i milled a taper into the manifold on the top and bottom, essentially porting it smooth.
I also went back and double checked for any boost leaks, and the system holds pressure.
maybe its time to drop those gov springs in and see what that does...