Edelbrock Pro-Tuner, User Manual

Page: 117 / 235

Basic Tuning with the Pro Tuner System 117
Although these areas vary somewhat with engine design, the following diagram will give
you an idea of where the engine will be operating under certain conditions.
Once cranking / starting performance is acceptable, the areas most tuners will address
next are:
1. Idle
2. Light Throttle Free Rev
3. Off Idle Transition
4. Light Load Cruise
Properly tuning these areas will allow the vehicle to be driven safely. The next areas of
attention are typically the snap throttle (tip-in) and wide open throttle (high power)
areas. Once these are finished, more attention can be paid to the light load cruise and
low RPM lugging areas. Again, these are only guidelines. Different tuners may proceed
through these steps in a different order.