Car Starts Then Dies

[Luv2gofst]

I'm new to this site. Looking for some help. I have a 94 superchared 347 mustang. I just put a intercooler on and reversed the intake on it. Now when I try to start it it runs then dies. When I did get it started if I give it any throttle it has a loud knock/bang. Any help would be appreciated.

 

[jrichker]

How do you spell V A C U U M L E A K?

Somewhere in the process, the manifold gasket doesn't line up properly or is pinched or torn...