Too much crank case pressure?

[Michael Smith]

Well I did the leakdown test yesterday and this is the results:
cyl 1: 18% 5: 14%
2: 14% 6: 14%
3: 13% 7: 13%
4: 14% 8: 16%
Also when I would listen or feel for air comming from the intake, exhaust, dip stick, or oil fill cap it always came from the oil fill cap in the valve cover for every cylinder so would this be blow-by? I used a snap-on tester and it said no more then a 30% difference in leakdown between the cylinders so am I correct to assume that the #1 cyl is close to this but still within tolerance? What do you think of the numbers for a new built engine with about 500-600miles on it?
The ring set used was a stock replacment moly rings end gap was standard .014-.016 no filing on the ring gap. Well what do you all think? thanks for any input and thanks Jeff for the reply.