small block engine priming

DR head oils at 20 degrees ATDC #6 compression (use the timing tab to get to 20) & preoil. Then turn it around forward to 90 deg BTDC #1 compression to oil the PASS head (there might be partial slits at 90 degree points) & use the one right before the regular TDC timing slit) or cut a strip of paper 5.694" to use as a circumference ruler & preoil. then come forward a bit to 15 BTDC #1 compression for your initial