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your log is only 7 minutes of non-moving idle, that won't do much good to actual tuning (unless all you want to tune is hot idle)
what 160 BLM means is that the computer is trying to add more fuel, and it has to dump so much fuel (at least 25% more) that it gives up. this is because it's interpreting your very low o2 voltage as 'lean'.
run my 'cl performance' analyzer:
your O2 sensors never exceed 700mv and are only generating 136 cross counts for 3100+ events. this isn't normal.
either you have a massive vacuum leak at idle, a massive exhaust leak, you need more idle fuel (maybe a constant is way out), or your o2s are not behaving correctly.
i looked at your bin, are you actually running 37lb injectors? i also think your cylinder volume constant is a bit high, i usually use ~7.85-7.90 for a 383 and you have 7.97.
i might try just lowering your injector constant slightly until it doesn't peg BLMs at 160, then you can log and tune from there?
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I have 36# injectors the spec sheet calls for 37.12 at 43.5 fuel pressure. I can not hear any exhaust leaks. I will get out the fog machine and fog the intake and exhaust. I will change what you recommended and see what happens. Thanks a bunch Steve I will let you know the out come
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another approach is investigating by feel
does it run better, or worse with the 160 trims?
if you go to eehack's parameter control page and RESET BLMs (so it runs just fueling tables without the o2s acting out), does it get smoother or rougher?
how about if you check 'override afr' and lower the slider (adding more fuel. this keeps it out of closed loop). you can try 'expert mode' in that same screen to get more extreme AFRs.
you could also try skewing spark advance down and see if less timing advance gives you a smoother or rougher idle
the results from that kinda stuff will give you more clues
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Thanks for the information I will do that testing to. Thanks alot for all the help Steve
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Changed all that you recommended. Depending on what constant was changed the high BLM will go from side to side while the other will drop to 128. I did see that the driver side o2 has very low cross counts. So what that tells me is that o2 is not switching back and forth. I got a new set to replace the new ones I already had. What do you think would make the low cross counts ? Bad signal wire ? From computer
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MODS
tried to upload a mod list wont let me it tells me the web page is not working ill try again later. Thanks Steve
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1 Attachment(s)
got it to load had to put it in a zip file. Any questions on the mods just let me know. Thanks
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LT1 388 forged rotating assembly
Spayed main bearing caps
Bore: 4.060
Stroke: 3.750
Rod Length 5.700
Hellfire rings
Trickflow Aluminum heads
62cc Combustion Chamber
2.02in./1.60exh.
.600 lift springs
1.5 Roller rockers
Comp R lifters
Chromoly push rods
Lunati VooDoo 60123 cam
Duration: .294int./.302exh
Duration @ .050: .243int./.251exh
Gross valve lift: .560int./.565exh.
LAS: 110
36 lb. Accel injectors
14.4 ohms
Actual flow rate @ 43.5 (37.12)
High vol oil pump
Racetronics 255 high vol. fuel pump with hot wire kit
58mm BBK Throttle body
IAC drill mod
Pro M 3AL75 MAF meter
MSD coil
MSD Opti spark
MSD 8.5 Wires
Moroso CAI
TB coolant bypass
Long tube Pacesetter headers