Looking for vac. leaks.
While reading a thread here I saw were one could check for vac. leaks by using air pressure/soapy water spray.

Well, I pulled the hose off the air control value and applied compressed air to the intake. I got lots of air and bubbles coming from around my lower injectors. Could that be a source of a vac leak or not. Not sure how much pressure I used or if it even matters. What do you think?

NA -91 s/5 vert. Just installed re-man engine.

 

Typical source of an intake vacuum leak.
You'd be surprised how soft the new lower fuel injector grommets are.


-Ted

 

I added an O-ring on the bottom of the injectors, just above the insulator grommet.