[motornut]

the block numbers can be a real pain,i've seen tinfoil pressed in to try and read
sometimes the gunk alone is the prob can't feel/see past it
i've stuck the pressure washer wand back there to clean it out
the 305/350 "i duno" happened a lot with cars
bought a olds two door i think about 83, told 350 ,doubted it but 100 dollar car
found 267,but the 350 cam still worked