Is there anyone else here with an LT1 that has gone to a MAFLess tune?
I did my own, and have not regretted it once since I went. My MAF sits in my toolbox now. My BLM's are so much more stable now than they ever were with the MAF and stock VE Tables.
It is common downunder to ditch the MAF, here in the US tuners seem to like to keep it. Mainly if you do another mod without a MAF, you likley need to go back and retune the VE tables. It isn't a biggie, but I do like the flexability in the air intake now and that I can run my ride without the intake elbow if I want to and no adverse effects whatsoever (save IAT location).
Car is much more stable at high ambient temps, no power dropoff when it is 90+ and I am in heavy traffic. Ever get that soggy feel? Gone. No issues with the MAF being a restriction at anytime. WOT power is best you can get it. Tuners in Australia have worked hard at trying to prove the MAF isn't a problem when tuned properly compared to the same car with a tuned properly MAFLess (aka, Speed Density) tune. The MAFLess tune was always faster in the 1/4 mile.
Me? I just like to play with it! Even got my split BLM's pretty much dialed out, it is very stable now and even.