[cablepro]

I did this on my Cobra after changing the heater core 4 times, but now I'm stumped, I remember I had to buy an adapter at a hardware store to moving the coolant temperature sensor, but I don't recall what I did with the small hose going from the throttle body to the rails, is it OK to just plug this, like I said I did it befor I just don't remember.

[Terrible Juan]

Yea, you can buy those rubber caps at your local auto parts store. I found them in the HELP section area with all the misc. parts.

http://home.comcast.net/~terriblejua.../heatercap.jpg

As you also mentioned, you will need a bushing to relocate your coolant temperature sensor. I bought mine from Lowes. Take the sensor with you so you get the right one. I had to make two trips because I guessed the wrong size of the intake manifold hole size.

[cablepro]

I already have the cap to plug the water pump, I'm talking about the small hose that runs from the throttle body to the rail, I saw in a magazine a car with the rails removed and the opening was uncapped.