Another 263 manifold has exhausted its last '53 cracked its manifold all the way around its circumference, right behind cylinder #5.  I'm about to bite the bullet and order a new one from Bob's (gulp!), but I'd figure I'd do a last minute check and see if anybody has any good, somewhat cheaper advice.  I think I know the answer, but $710 is a lot of money for any single part.  Oh well, 64 years is a good run, although the one that cracked was in the trunk of the car when I bough