Vacuum testing

[Rock&Roll Firebird]

If you follow the vacuum line that runs inside the driver side fender well, you can usually stick your hand in their and feel if the hose is connected. You could disconnect the vacuum line, at the check valve tee, and connect a vacuum tester to the line and see if the tank will hold a vacuum. If it tests okay, you would not need to remove anything.
Nyles

I'd like to vacuum test my Bird this week, just when the postman delivers my new tester . Must admit, I don't know the procedure at all. Can any of you briefly describe what to do with the tester, where to start, continue and end? And how to test the vacuum tank for leaks?

[simplyconnected]

Simply follow the directions on your tester when it arrives. - Dave

[ayrwoof]

vacuum

[QUOTE=/ For best vacuum pull stick to Stock cam shaft specs. 252deg max
(i used the voodoo 60001 cam) . if the cam lobs are worn the intake
will see a Pulsed vacuum ,:BUT this wont show on any vacuum gage.
this pulsing will be a weak spot of compresabliaty that will weaken the pull on the brake booster . yet the gage reads 19-20 inch pull. If engine pulls
hard with back barrels wide open , and running hard . the brakebooster will
do fine.