Master

i can record my air and fuel mixture with the tuner tho..how much can i safely raise it with my mods to just to get a bit of a gain safley without running to rich or chancing it?

Master

anyone know ?

RJM02GTDrag

On the Predator if you advance the timing all the way it goes to 12 degrees at idle. Best performance as previously stated is at 14-15 degrees advance at idle. (need 93-94 octane then to prevent detonation and engine damage) Its risky to mess with fuel mix without AF on a dyno. The 4.6 2V likes it leaner than stock but how lean varies and can cause big problems at WOT. A diablo dealor or manufacturer can e-mail you an advanced tune based on your mods that can advance timing past 12 to 14 , 15 or higher and lean you out closer to max perform for like $75, its easily put into your predator and uploaded, but a dyno tune is best and safest. The software in the diablo predator is the same as used by most dyno shops to tune Mustangs so they can put tunes into your predator as well and anybody that advises you to buy a steeda timing adjuster instead of a programmer does not understand their capabilities or bought the TA first and is unhappy.