Cook the chocolate cake recipe on the back of the can of the Hershey's brand cocoa powder into a bundt cake?

I want to make the chocolate cake recipe on the back of the can of Hershey's unsweetened cocoa in a bundt pan. The recipe originally said to cook it at 350 for 30-35 minutes in a regular cake pan (it normally gives me a 2 tier cake). I am not sure if I should change the cook time or heat or if i should just stick it in there and cook it till the tooth pick comes out clean. please answer quickly!