Re: Stacked pulleys - 23psi with no codes. :)
Out of curiosity, I decided to datalog the A/F in 2nd gear, and 2nd gear only. Reasoning is that 3rd and 4th run leaner leaving 2nd gear as the safer test.
The results are the same as my preliminary test on day 1. I see A/F's in the 11's up until 3,800, and at that point they lean out into the 13's. I'll drive it a few more days and see if the LT's affect the Open Loop fuel tables and richen it up. At that point, if it's still lean in 2nd, I'll need to either retune for more fuel up top, or install a larger S/C pulley. I could also just remove it. I love having options.
By the way, for the time I was in 2nd gear (approximately 4 seconds, since I started in a very low rpm for 2nd gear) my IAT's went from 66-106F. They dropped back down to 71F in 15 seconds. I'm not impressed with the IAT's, as there is something going on with my H/E's or intake tubes. I think my intake tubes may not be sealed and allowing hot air to be sucked in from the engine bay.