not really, they should all be between ~50-60kPa...avcs on the later engines negates any larger cam diffrences in idle vac there may be, factory fitted cams/engines with emissions in mind ....

An engine with large after market cams and head/intake work etc may end up with less.... my engine with the largest cams JUN make suffers low vac at idle(~25Kpa)..but thats built for low(ish) compression and camed up hard...