Update, OK over 1/2 done. cleaned carbon from chambers, sprayed brake cleaner thru breaches in center dividers,blew them clean and dry, light coat of synthetic oil on stud threads for no-stick, mixed up the super sauce and twirled it in with a bamboo skewer, then slapped a small square of thick visquine over the repairs to push them in and smooth them out.
Next day, studs now part of head (oh well)
lightly sanded down patches with 80 grit with paper towel stuffed in port, vacuumed dust then blew out with air.
On to the block.
C