Attention: TDR Forum Junkies 
RFox said:
Did you put the diaphragm cone back in EXACTLY the same position it was in before? If you got it a little deeper than before, that explains the extra 2psi. Not that it is good or bad, just a possibility.
The starwheel affects how fast the boost comes on, all else being equal. It wont especially affect total boost.
I second the lift pump test; if it is erratic, it can affect everything else.
-DP
