Well fellow forum members. Today I got a lengthy log at the track with the 178 pulley. For prosperity here are the boost numbers at my altitude and conditions.

Aluminum 3rd. generation Code 3 supercharger pulley. Highest boost recorded on my car.

17.9

178 ASP pulley from Needswings. Highest boost recorded on my car.

19.7

I'm hoping to get a new dyno as well, but fate is working against me lately.

Les