I just rebuilt and installed my engine back in the car this weekend. I iwent 3mm stock Mazda seals. I just idled it for about 20 minutes with a few revs. At idle I am getting 30 cmHg or 17InHg of vaccum. I know that the engine is far from broken in. Just curious what other peoples vac. at idle is that have 3mm seals. Car idles very smooth contrary to what I've heard a couple other people with 3mm seals state that their idle was lumpier?