safc highs -50, 11.2 afr, not getting much timing

[cfisher]

got a wideband today and went for some 3rd gear pulls. i had to put my highs on my safc to -50 from 4K - 7K to get 11.2 afr. problem now is i'm not getting that much timing. had 12 deg timing by 7K. any suggestions what my problem is.

 

[cfisher]

also, 680cc inj & walbro 255 fp. about ready to install 6an fuel lines w/fpr. think that will help me out.

 

[cfisher]

47 looks and no comments. come on now guys. i know someone has there 2 cents on this one.

 

[duke52]

i'm having a similair problem but i'm running 780cc's, your afr looks good, what are you running for boost? also you are almost definetly over running your stock fpr. i found the car idle's 100 times better and allowed me to lower my over all fp which let me to give a little back with the afc. do you have a fmic or good smic? sounds like you have enough fuel but are still getting knock due to temp to me. i've heard alot about backing out the adjustment screw in the 2g mas but as of yet haven't played with it, could help you get a little bit of adjustablity back with your safc though,