With a dry-flow manifold, the inlet location isn't as critical, especially if you keep the low presure area behind the throttle blade away from one or two particular cylinders. Another technique used to fight this can be seen in the Self manifold- the use of a tapered plenum from the throttle to the end cylinder. You shouldn't have any issues with flow as long as you have sufficient plenum volume and your throttlebody doesn't become a restriction (it probably already is).
I'm so glad to see you making progress- my build has stalled for now. I want to get on the cam purchase if that is still open.
Have you had a chance to monitor any backpressure #s? I'd really like to see how that turbo manifold flows.
