Mercury Mercruiser GM V-8 305 CID / 350 CID Engines Service Manual., Page 634Get this manual
Quality of the image is intentionally reduced!
SERVICE MANUAL NUMBER 24
43 14 None None None None 33 21 None 21,23 None 21 None None None None 33 None 33 None
B+ B+ 4.9V .62V
See Page 5G-6 For NOTES
90-