My kit came with the 3.125 pulley. It's supposed to boost to 12 PSI but with my gauge I read either just at 11 or just below it. That could be due to my altitude or long tube headers, maybe both together haha. I'll post some pictures up later. Besides the fuel gauge i'm very happy with how this install went and the results from it.

 

Here are some pictures

 

What happened with the fuel gauge? and which A/f ratio gauge is that?

 

Fuel gauge still remains uncorrected I haven't been able to find the time to call RET to see about getting my car down there, so it will probably have to wait till after christmas. It's an autometer cobalt series gauge.