Few issues Options

[Defgeph]

From the begining of my swap I've had low vac issues. I replaced hoses tightened everything up capped off holes.

I eliminated my AC and power steering. I have the hose for the AC idle up capped. Would I be better off capping the two PS vac lines?(current setup) Or should I connect them to each other with a hose. I'm close to having full vac, but its still alittle off.

Second thing, when I slow down and put the car into neutral the RMP's dip way below normal idle. After running at like say 650-750 rpm for a few seconds, it raises back to 1000 where its been since the begining of this project. Sometimes the car stalls, I looking for some suggestions or ideas.

I've checked timing, its set at 10d's.


Thanks guys

[x_itchy_b_x]

meh, i didn't mean to split hairs.
generally a vacuum leak is a boost leak and vice versa.
I found a hg/kpa calculator
http://www.shender4.com/pressure.htm
-99 kpa is 29.23 Hg and 14.36 psi. so, is that gauge giving you atmospheric pressure?