1969 Shelby GT500 Vacum system for tilt away stearing.

The one hose line from the can to the engine is easy. It snakes up from under the battery box through the alt/reg wire straps ,across the support brace and down to the one way vacuum valve. The valve has one outlet which goes to the engine side vacuum nipple by way of a short hose to the intake fitting (unpainted because it was added after the engine was painted depending on accessories) and the other side has two nipples one for the vacuum can and the other goes inside to the tilt motor. This is the way for 69 because 68 set up is different in this area.Bob

 

The check valve can be sourced at corrvette(bad word) restoration supply. Also ckeck Mansfield mustang or NPD because I think they might have the correct looking one now but not sure. You can check for function by sucking on one nipple side and you should not be able to blow through that side. Bob

 

I explained how the check valve goes in my previous post. Since you missed that I will try again. You will have to try and understand my description because I don't have a photo handy of the hoses all connected and my example is hard to get to and take photos of at this time. First I am only going to comment on how it was done from the factory in 1969 and not how it can be MacGyvered to work. You will have to choose if you want to go that route rather then original.
You have the wrong vacuum can under the battery box . The 69 vacuum can only had one nipple . The 69 can did not have a check valve made into it like the 68 two nipple can hence the use of the remote check valve. The vacuum can you have is some kind of replacement. If you don't have A/C one nipple on the brass intake manifold fitting will have a rubber cap and the other will have a short hose going to the single nipple side of the vacuum check valve (picture in previous post). On the two nipple side of the check valve you will connect the green and white hose coming out the firewall . The other nipple will connect to the single hose coming from the vacuum can under the battery box. I hope this helps. Bob

 

Before you put your battery tray back I would advise you to invest in the battery apron support that goes underneath the battery apron . Yours appears to be missing ether rusted away or not re attached when a battery apron was installed. They were originally welded on but since they have nuts made into them when you bolt your tray back in it will effectively hold the support in place providing extra strength from flexing needed to the apron because of the heavy 27F battery. NPD sells them in their catalog. Bob