here is what im looking for:
have EFI Live or something with logging capabilities that can read boost and rpm. place the truck in 5th gear in tow/haul mode so the converter is locked. slow to 55mph and record your rpm there. goal is to be around 1500-1600rpm. Once there, roll into the throttle heavy (you can get to about 75-80% throttle before a down shift and thats all thats needed) and do not let it down shift. if it does, start over. from the time you roll into it, start a log of the truck either with EFI Live or with the CTS. stay in it till boost hits 20psi. once you do, post the log up.
if you dont have a means of logging, video the RPM gauge and the boost gauge together and run the test. that will be a good estimate.
what this test does is tell me how long it takes boost to build on this charger and at what rpm it starts to come on. People claim it spools as fast as a stock 66mm so that would mean at about 1800rpm, the charger should start coming on and then take off 1-200 rpm after. this will tell us just where it actually is.