Edelbrock 3670 User Manual - page 117

Basic Tuning with the Pro Tuner System

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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.