Well I have figured out my issues with vibrations and no boost. I went through the vacuum lines. checked the diaphragm in the bypass checked the solenoid put a new stock front trans mount on. The vibrations got worse after the new mount. All along I thought it was the converter because I have had a converter plug up on this car before.
Tonight I dropped the converter and took the car for a test drive. Immediately I could tell a difference in the vibrations. Also the boost gauge got snappy again. When I got out of town and opened her up I instantly saw 15# and built to 18# by 6800rpm.

 

How does this require opinion?

 

You stg2?

 

My opinion, no cat = better

 

Sorry guys.

Yes GM stg 2

and I am wanting opinions on converters. I have to use a converter as this is a daily driver

 

Magnaflow make good cats. Or get a zzp downpipe would be better.

 

I am leaning towards the zzp setup with a mid length header

 

Do it, you won't regret it.

 

post this in the general section