So I've finally swapped out my 2.56 open rear for 3.42/yukon posi and have begun to tune the car a little.
It's a stock '95 roadmaster with the only mods being "home plate" delete and 3" pvc running from the stock airbox to the elbow @ the throttle body.
Analysis of my first set of logs showed the car was running pretty lean and had a few knock events between 4300 and 4800 rpm at WOT.
Attachment 11012

Made some changes to the MAF tables and reset the target afr to 14.1 to reflect the el cheapo 10% ethanol gas I normally use. FWIW the knock events disappeared and the log anaysis looks like this.
Attachment 11013
Attachment 11014

I'm currently researching PE fueling and timing changes but am in no hurry (prefer to do this at the dragstrip since my butt dyno isn't well calibrated). Just looking for a little feedback, areas I could work on etc....
attaching the most recent log and bin file if anyone wants to have a look.
Edit: seems my log file is "invalid" as an attachment...