I have gotten my blm's in the ball park using injector constants
and maf table 1 for getting idle @ 128.
and have gotten driving blms pretty close 124-132 but where do i go from here? driving at light throttle and light load my blms are 127-130 but once i get under more load like a hill i start to go rich. do i want to work w/the maf tables in those ranges or do i want to use timing ? or is there a table im not seeing?


Thanks for any help..


87 T/A 355,MINI RAM,CANFIELD HEADS,ZZ9 CAM,SLP HEADERS,
FLOWMASTER,373'S,6AL.

 

How rich are you going???? GM's "spec" was +/- 4 or 6 BLM. Also if the majority of the maf gps readings are rich (eg- if "under load" gps from 40 to 150 or so) then I would adjust the inj. constant again to lean it and then richen the other areas.
As for using timing-any knock retard now?

 

Well the load range around 40-110 are good but beyond that is where it becomes richer sometimes as low as 112. as far as knock
i get none in the driving range, some wot but im working on that
got full advance comming in at 3200 and at 35 degrees total-
been lowering 1 degree till knock is gone and that seems to be the magic ##.
How do i lean out a higher load ranges -lower rpm w/out affecting the lower load ranges? through maf table?