360 magnum coolent temp sensor

So I have a 318/360 magnum hybrid running a mopar performance duel plane intake manifold, I have an after market coolent temp sensor which I had to run into my radiator, because I couldnt find a spot to run it on my intake manifold, The stock coolent temp sensor for the magnum is a 2 wire so i couldnt run it with my stock gauage, anyone know of a temp sensor that will work for my intake manifold?

this is my manifold im running
http://chucker54.stores.yahoo.net/mopduelplanm.html

Thanks !!!

-Chris