intake opening size

[SilverBullet]

On the 5.0 X, what is the size of the intake, after the throttle body. Is it 60mm, like the stock TB? or is the opening larger. I am contemplating a 75mm BBK TB but not sure if it'd be worth it..

I know it wouldn't be worth it if I don't do other mods, but getting a larger TB is just part of my plans..

 

[V8Exploder]

My friend Mike runs a 65mm with his blown 347 and it made less power with the 75mm on it. If the stock one is 60mm, you will be fine up until the point you port the heads and add a blower. It also isnt worth much at all except less throttle response unless you get a big K&N and a larger MAF and intake piping. But if your throttle body is port matched to your intake, that is as big as you need to go.