No problem, John!
Having done no math what-so-ever, using the SWAG method (scientific wild-a** guess), I'm thinking 550-555cc injectors should be fine to get you to your goal. Also I don't know how hard it would be finding high impedance 800cc injectors that will work with the OEM ECU. Might be easy, I haven't checked. Sounds like a VH with proper tuning and upgraded rods and pistons would be ok well above 1000hp. That's pretty awesome.
You said previously you're running 10psi, right? Is that with the methanol injection or just the intercooler? The other thing is this, depending on what size your turbo is, you may be running way outside your turbo's max efficiency range at only 10psi. Meaning as you go up in boost, power may go up exponentially. The boost vs. pressure relationship is not linear; such as 1psi = 10hp for example. Turbo's work best when operated at in the max efficiency island specified on the turbo compressor map. Lower or higher pressure can make a pretty significant difference.
Of course, that's all just speculation. I'm guessing Shane may have better input since he knows your setup better. Definitely go for another dyno and see if that one was a fluke. I liked those torque numbers though. Almost 400ft/lbs to the wheels...NICE!
