vacume pressure at idle?

[taka21]

i put a vac guage on my n/a motor and it reads roughly 20lbs of vac at idle
im just trying to figure out if thats normal
i did change the hg not too long ago and they shaved the head .003 if that makes any difference
thanks

 

[gaboonviper85]

Yes it is......it's right where it should be!

 

[RazoE]

perfect, and if you're 5 speed, it'll be around 26-30 when you leave it in gear to slow down...

 

[jdub]

More info:
http://www.cygnusx1.net/supra/TechTips/vacuum_gauge_readings.aspx

 

[taka21]

awesome thanks everyone