90 (2 questions)

[randrews@post.cis.smu.edu (Robert Paul Andrews)]

On my 88 90, here is a relatively stupid question, but just want to 
clear up some confusion:  The idle stabilizer valve is the the deal
with the two big hoses and one electric connector near the front of
the engine?  Now, my Idle was gotten worse, racing to 2000.  And I
did accidentl break the elbow that connects the hose that runs along
the manifold and turn left to follow it.  There is a plastic elbow that
has a small vacuum line on the bottom.  I did break that off? What 
is that for?
And, does anyone know what the Alternator amp rating is.  Could I get
amore powerful one?
Rob
randrews@post.smu.edu