headlights

[aerie1761]

I recently install a new cam, intake and carb on my 81 vette.The lights will not come up when I turn them on. They worked before I made the changes. I seem to have plenty of vacuum at the Tee on the manifold which feeds the lights. Any ideas . Thanks

 

[Vette79]

Just got done doing the same thing. Hopefully you didn't install too big of a cam. How much vaccuum do you have at the intake manifold? No offense but have to ask if you triple checked and made sure you connected everything back up properly...

 

[Koop]

I recently install a new cam, intake and carb on my 81 vette.The lights will not come up when I turn them on. They worked before I made the changes. I seem to have plenty of vacuum at the Tee on the manifold which feeds the lights. Any ideas . Thanks

How much is plenty?

 

[MADLT1]

whats a good tool to che\ck vac pressure,and how much does the tool cost?