Adding Holley multi port HP EFI can my stock 1995 4l60e computer still control the transmission?

[Supercharged111]

TBI needs to see engine coolant temp to enable lockup. Needs to see MAP to adjust line pressure for varying Barometric pressure. Also uses the cruise signal on the white wire from the cruise module to the PCM to adjust shift points.

Damn it's smarter than I gave it credit for.

 

[Whittaker]

Do you intend on having the Holley control the ignition timing?

yes