2150 carb. D7AE ACB. This is a High Altitute carb as found in a 1977 LTD with a 400 motor. Emission calibration is C17XR4. Would anyone have the specs for this carburator? Im sure someone messed with the accelerator pump settings and changed the power valve. I have the specs for a D7AE ACA carb as found in the 1977 Ford Car Performance Specifications book. I was also wondering if the D7AE ACA and the D7AE ACB use the same specs?