I'll try that. However the new intake manifold had an integrated gasket molded into the manifold.

 

I just want to thank all of you who have given suggestions. It has helped greatly. I'll post what I figure out tomorrow. Thanks again everybody I really appreciate it.

 

So it wasn't the injector. It was a bad coil. I replaced it and the plug and it's running much better. There's still a bit of a miss it seems but it's not constant more sporadic. I'm going to replace the remaining coils and plugs and see if that doesn't eliminate the random miss. I've put over 200,000 miles on this truck so I'm guessing a complete tune up is probably more than long over due. Aside from the routine oil change and replacing the brake pads and rotors I haven't had any issues.

 

Good to hear you got it figured out. I always hate it when I fix one issue, and a different one pops up!