I am working with a prominent mail order tuner and having problem with idle. My STFT is .75 on bank 1 and bank 2 during 2 minute datalog. My innovate wb is at 22.4 if I hit the gas to say 1700rpm it drops to like 16. Tuner added fuel about 4 times by multiplying MAF transfer table by 1.3 but still runs lean at .75. On the last datalog about 1:30 min into log the STFT jumped to 1.03 bank 1 and 1.25 bank 2. For like 8 seconds and then back to .75. My setup is a 2001 2v with a MMR 750 4.75 shortblock ported heads stage 2 CMS turbo cams single FF On3 with a Precision 7675 any help is appreciated I also have the datalog if needed. Thanks