[kach22i]

After you change out all the vac lines there will still be the intake manifold hoses near the air box and throttle body, plus a hose on the back of the engine, passenger side, each which require a partial engine drop to get to.

In the 101 Projects book page 96, #3 caption shows a good picture and explanation of this intake manifold hose trouble spot.

I experience the same issues you do, found my two remaining leaks using the starting fluid method.

I have a few tricks on living with this condition until you can get to fixing the car.

1. Start the car and run for about five minutes to warm up the engine a bit.

2. Wait about five or ten minutes to allow the heat to expand and seal the leaky connections.

3. Re-start car and drive off, the bobbing tack and engine variation of idle should go away along with any possible stalling issues you were having.