Good diagrham! What is interesting is the T-fitting heading to each windshield washer nozzle feed lines is where the second T-check valve fitting is located in my pic. Also, this same Camaro, and one other original, survivor 69 Pace Car I have seen, had the Y-fitting as shown in your diagrham, between the two lines from the pump to the single line into the solenoid. In repro kits I have seen you get a T-fitting, not the Y-fitting. I could not find a part number for this y-fitting in the AIM.
Are there any other RS or CE1 equipped 69’s out there with these check valves and Y-fittings still on your car to confirm there existence?
If anyone knows where I can find a Y-fitting, new or used, I am interested.
Thanks again for the info.