When you up grade your throttle body do u have to do anything to your Mani also is it even worth it.

 

you can have your intake manifold pulled out and have it port matched to ur new throttle body.. your local machine shop could port match it.. just take the manifold and trottle body gasket and might as well match the manifold to your gasket

 

How successful is a tb with out port match

 

think about it for a second..
bigger tb with the stock manifold bore size