Factory specs for my 500 SEC are 15-18 degrees BTDC
Factory specs for my 500 SEC are 15-18 degrees BTDCrudedude - 4/16/2006 11:58 AM
To properly adjust the timing you need to have a timing light. Factory specs are @ 0 degree TDC. For more performance you need to advance the timing but not more than 10 degrees BTDC. It's not a matter of just moving the distributor one way or another. The mechanic should be willing to put it back where it was without charging you again.