This window allows you to initialize the forced induction parts of the fuel & ignition tables.
Only boost columns are altered (columns above atmospheric pressure).
Tables to update
Current table only - updates only the table for the current cam angle
All cam tables - updates tables for all cam angles
Ignition tables
Don't change - doesn't alter the ignition table.
Initialize to lowest normal advance - copies the highest naturally aspirated ignition column into all the forced induction portion columns of the ignition tables.
Retard ignition - as above but retards the ignition based on specified retard value (degrees per pound boost).
Fuel tables
Don't change - doesn't alter the fuel table.
Initialize to highest normal fuel value - copies the highest naturally aspirated fuel column into all the boost portion columns of the fuel tables.
Add fuel under boost - as above but adds fuel in proportion to the increase in manifold pressure over atmospheric pressure. To allow for the lower BSFC for forced induction it is normal to add for fuel than the absolute increase in pressure would suggest.
Extrapolated based on columns - as above but uses the selected columns as the fuel reference, rather then the highest naturally aspirated fuel column.
Only update selected columns - when selected only updates forced induction columns which have also been selected in the Table Window.