high vaccum on vaccum gauge

suprana1990

New Member
Apr 4, 2005
65
0
0
NYC
hi
i would like to know what is the correct vaccum reading at idle?

i get 21 and when i rev to around 2000rpm it goes up to 25
and then drop back down to 21 and steady out.

i would just like to know is this normal or a exhaust leak?