Hi,

I was wondering if any of you knew the correct ID size for all of the coolant hoses on an 87 NA. I need the size and length for the heater hose, throttle body coolant hose, and the main radiator hose. I purchase some 5/16th for the throttle body but it seems a bit tight? Has anyone every used some bulk silicone coolant hose from McMaster carr?

Also, What is the size of the hose to the airpump hose and does anyone have a picture of the correct orientation of how to hook up the system? I have the FSM but it doesn't seem very clear to me.

Thank you for all the help!