What efi system are you using? Curious because some systems really can cause chaos if duty cycle goes static. Are you sure you're not just over fueling the program at higher rpms? If you can look at pulsewidths in your fuel table, make sure at each load point that your pulsewidth doesn't increase once you get past peak TQ rpm.

Last edited by TRENDZ; 08/29/17 09:35 AM.
"use it 'till it breaks, replace as needed"