Birdman 996

Sorry folks if this has been hashed out before. I've done a couple searches and not found a recent update.
As far as currently available performance tuning chips WITHOUT the Mass Air Flow (MAF) addition, are there any opinions or experiences with these or other chips on the market?
(Would like an FR Wilks > Powerprom > 3KS, but they are pretty scarce.)

1988 924S

Thanks