ok figured out the issue unfortunately it's not something i can fix or adjust..
i tried all three atty heads and same thing.. i tried it with out the atty heads i get great draw.. so the issue is not any where below the atty..
the attys have a very small hole on the bottom going into the air tube.. that i tried pushing the wick and coil aside but it does no good even though i can see light thru the atty..
basically bottom line is the attys air holes are too small at least "for my taste" gives me a can't breath feeling when trying to draw..
not sure if this is how all vivi nova attys are or i just got 3 bunk ones which is unlikely.. so buyer beware if you don't like very tight draws
