So i finally got the caddy 500 swapped into my 85 camaro, its having starting problems now plenty of fuel and spark. maybe a vaccuum leak or incorrect routing of vaccuum lines ? also read about a choke built into the carb?

 

heres a rundown on the numbers in the pics

1- no clue what this is or does
2-same
3-same
4-this is the screw ive been using to adjust the idlewghen the motor does start
5-to vaccuum advance
6-vaccuum but dont know what it goes to
7-hooked to 9
8-hooked to trans
9- dont know what this does
10-hooked to 12 when motor pulled new hose though
11-was told the screw did sumthing withsecondary lockout?
12-had a hose with two "T"s hooked to ten know
13- not sure
14 not sure

 

I'm at work now, so I don't have time to answer all of these now. Maybe later tonight.

Ok #11 - That's your AV tension. Set that so that about 3/4 of a turn tighter that "flaccid". Use the small allen screw on the underside to unlock the screw so you can turn it.

Yes #4 is your hot idle screw.

You should only have vacuum going to :
-Vacuum advance on the distributor
-PCV (3/8" line)
-Brake booster (3/8" line)
-vacuum break on the PS of the carb. (that's #10). Yea, #12 would work for that.

14 - goes to PCV valve.

Your PS has the valve cover breather, so the DS valve cover needs the PCV valve, and the vacuum line (#14)

#2 is the AC kicker. Raises idle speed when you turn on your air conditioning. You can use it for other purposes (if your engine diesels, F-bird'88 has a use for that). I toss them out.

#1 (the metal line in pic#1) goes to your brake booster

#9 = ????
#3 = ????


You can probably plug 6/7. I think you have a hot air choke, which is a POS. Grab an electric choke off another JY q-jet.

You didn't get any good pics of the PS of the carb, I have no idea how the choke is set up. I'd say get an electric one, get a new front vacuum break, and throw out the rear one. That carb looks pretty old, you may want to nab a newer one that looks in cleaner/better shape. They're all pretty much the same.....

Stock 500 or modified?

 

500 is stock 4 now...

 

That's not a hot air choke (which I thought was the best design they ever had), it's divorced choke. The choke thermostat is heated by conduction from the exhaust cross-over passage.

I believe #1 is pointing to the capped-off port above the PB vacuum line, right? Not sure exactly what it's for, probably went to the air cleaner or some emissions dohicky.
#10 is the choke pull-off.
#12 is usually the line that the air cleaner thermovac hooks to.
You don't have a port on the back of the carb base for the HVAC vacuum, so use #6.
#5 is usually vacuum advance.
#3 is a mystery. Looks like power wires going to it, like some kind of stepper motor (doesn't look like the stepper motors I've seen), or a lock-out of some kind.
#9 I've never seen before. No clue, but probably related to the choke and some sort of emissions control.
#13 is for the PCV valve. #14 is a manifold vacuum source for something.