How much Vaccum at Idle on the stock block?

[gndriver]

Just changed my gauge then had to put the original back after I fixed the vaccum line and noticed a change in Hg. Now I'm wondering how much vaccum are you guys seeing while in D and idling with a stock block?

 

[Reaper]

i pull anywhere from 15 to 17 in drive at idle. one thing you need to make sure of with these cars is the PCV valve, it HAS TO BE DELCO, frams do not give the proper amount of vaccum. my car is stock (117,000 miles) save for a vaccum brake conversion, and stuff seen in my sig.

hope that helps
Dathan

 

[tom h]

Originally posted by Grim Reaper
...the PCV valve, it HAS TO BE DELCO...

The PCV is specific to Turbo cars, don't accidentally use a normal-aspirated Buick V6 PCV.

Correct parts:
AC # CV893C
GM # 25095468

 

[gndriver]

Thanks guys going to buy the pcv just in case.