I'm not aurguing and I appreciate all replies, but I'm still confused. I even emailed Rodney Dickman figuring he'd know and he replied that none need sealer. I agree the big bolt #4 needs sealer. When I pulled this bolt coolant came out. Coolant didn't come out with any other bolt. The '88 service manual is unclear, confusing and possibly wrong or incomplete. The manual seems to say the little bolts need sealer, but they sure do seem to go into blind holes. Right now I'm inclined to put sealer on all of them just to be safe.
'88 Formula, red on gray