New motor/1050 dominator won't idle

UPDATE 12/16/13:
The motor now idles at about 1000 in neutral, 800 in gear.
It wasn't a vacuum leak.
It wasn't fuel pressure.
It was......operator error :-o
A quick call to the carb. builder Monday morning to let me know that their are separate idle screws for the primaries AND the secondaries. I thought the one on the secondary side was just to operate the accelerator pump. Live and learn. Also, this carb likes the mixture screws out a little further, 2 to 3 turns to start rather than the standard 1 1/2.