I have a 05 Mustang GT supercharged with a M90 Roush kit running 6psi with some BBK long tube headers
Running the 38lbs injectors from Roush
I did read the stock Roush program but it was always way too lean so i did enrich the MAF voltage table a lot.
It's almost finally tuned but when i step down throttle it get a little too rich half of second and hesitate a little bit. 9.9:1 AFR
The car was previously tuned with Diablo Predator but it was reverse, it was too lean 1 seconds after boost start up
Where can i adjust this parameter, it seem to be almost just an accel parameter because after that half second the AFR return fine in the 11:1 range.
Thanks for any advice