runs like a vac leak

Im not familiar with your tool, but no matter. The pressures are too low to be useful. but the 10 % difference is somewhat telling. Somewhat because we are missing the rest of the cylinders so really have no way to make an accurate assessment.
air past the rings is mostly normal; 2 to 4 % is typical, unless you have gapless or really tight file fits in a hot motor then 2% or less is achievable.
I will throw my hat in with the others regarding timing being late. Thats the number one go-to with, stinky,makes your eyes water, exhaust.

Just to reiterate; what build specs and most importantly; cam and idle timing. Cant help you until you help us