i'm putting the front back on my car and forgot where the front light wiring was routed on the left side of the radiator and quarter panel and does anyone have a vacuum hose diagram from the engine intake?

The light wiring harness goes from the fuse block through two plastic loops on the left fender apron through the core support behind the left headlights and under the front side of the core support held in place with clips. I've never seen an engine vacuum diagram either.

I can tell you where all the vacuum lines go on a V-8, I just can't seem to find a diagram right now.

L shaped fitting in intake, in front of carb, driver's side: PCV valve in valley pan.

TVS switch in intake, in front of carb, passenger side: ports are marked, if you have the 5 port then it should have either a 3 port adapter or a loopback hose. DA=distributor advance (distributor vacuum canister). CA=ported vacuum (front of carb above throttle plates). MA=manifold vacuum. Other two ports unused and blocked off. There is also a vent port with a cap on it.

Choke pull-off: front of carb, closest to pull-off.

Small manifold vacuum port on intake in front of carb: air cleaner thermostatic switch.

Hollow stud (passenger rear of car): AC cars only, ventilation controls. Must have check valve in the line.

Rear of carb, Y fitting: Straight through, power brake booster, must have check valve installed on brake booster. Off to passenger side: automatic trans vacuum modulator.

Hope this helps!

Will this be of any help?
http://1968firebird.org/illustrated/vacuum/vacuum1.html

David

The one that looks similar to the '69 is the image captioned "1968-69 Automatic Transmission (Typical)" if you have an auto, and that covers only the TVS.