Scanmaster first idle readouts

[Maverick87]

400 - 460mv
Ret 0.0
Maf 5
Lv8 35 - 38
Volts13.2
Int 128
Blm 150
Temp 170 -190
Air temp 125
Rpm 700 - 800
Tps 0.38 -0.40
Iac 28
02 cc 16 - 250
Ac off
Loop = open
No codes

New to this I know the Blm is at max. What should I do for better idle? Runs rough untill it gets to temp.

 

[SFI Cutlass]

Vacuum leak or unmetered air going into the engine after the mass air flow sensor. That is why the blms are high.

Read this. http://www.gnttype.org/techarea/faq/BLMINT.html