3.0 v6

Hey Guys: I recently fired up the transplanted 3.0L 12V in my '65 Giulia GT. The engines runs, but not great. I wanted to pull the error codes off the T1 or T2 connectors, but not sure how. Can anyone suggest a link for how to interface and code definitions. Thanks

My 1988 Alfa 75 3.0 V6 seems to be bogging under acceleration. After reaching operating temperature, it can run fine for a few minutes (plenty of power), but then it frequently has a few bad minutes where it has no power, jerks and hesitates with acceleration and sometimes backfires with a pop...