M278 and M157 Spark Tables

[clifftoo]

For tuning would we change all of the advance charts?

4 base
4 Int manifold changeover flap 1
4 int manifold changeover flap 2
4 int manifold changeover flap 1

4 MBT "optimum" spark tables

Any insight into these would be appreciated.

[VQ2Fast4U]

Depending on what you want to achieve with spark you dont need to change every table. Some tables are only used under certain conditions.

[outlaw_50]

For tuning would we change all of the advance charts?

4 base
4 Int manifold changeover flap 1
4 int manifold changeover flap 2
4 int manifold changeover flap 1

4 MBT "optimum" spark tables

Any insight into these would be appreciated.

You can change them all .. if your not sure what is what !