Timing

[BadJoey]

My car has a 440 out of a 67 GTX , heads are out of a early 70's police car  . It is 30 over, small cam, small intake , carb is a 780 . After checking the timing it was 7 or 8 BTDC . My chilton shows 3 440 timings 2 of them were 2.5 BTDC and 1 was 5 BTDC . Car also has Mopar electronic ignition . I put it in and set the timing years ago . Did I set it at 7.5 because the electronic ignit or should it be 5 or 2.5 .  Anyone have any input on this .  Car is now set at 2.5 , starts right and sounds more responsive .Thanks for reading this and any help .

[Chryco Psycho]

Generally they respond better with 12-16* at idle & no vacuum advance , are you sure the timing marks are accurate ?

[BadJoey]

The plate on the timing chain cover only goes to 10 in each direction .  Maybe a better question would have been .  Is the timing the same for electronic ignition as it is for points ?

[Chryco Psycho]

Yes it is
 if you measure 2 3/8" clockwise from the TDC line that is 36* cut or mark a second line there & you can use the scale on the cover