Priming the rebuilt engine question

turn the crank to 90 degrees (1/4 turn) BTDC #1 compression & preoil the pass head with the hex shaft (some dampeners have partial marks (3 of em) in addition the the full TDC timing slit) or if not cut a strip of paper 5.694" to use as a ruler. then turn the dampener back around CCW to 20 deg ATDC # 6 compression & preoil again for the dr head. this will preoil both heads with minimal turning. then turn the crank back CCW a bit more to your preferred initial (IE 15 BTDC) & install the dist with the rotor under where the #6 plug wire is. It'd be a good time to check rotor phasing. and only vac adv not mechanical changes it (shifts it CCW on a SB) from its static position in relation to the cap terminal.