The original block, featured in this post:So you have a second shortblock now, and the original still may be okay? Just catching up here...
Isn't in great shape, and would likely need to be bored out to be usable just based on this one cylinder's chunk missing, let alone the scoring everywhere in the other cylinders.
Doing the cam will be $60~80, and regrinding the lifters -even if pitted, he says they usually grind out fine- are $4 each.Since this seems to be the place we put the cam info we find...
I called Delta today about my 3FE's cam and they did _not_ recommend running the 250 or the 262/KC859 cam at my elevation here in Utah. (4500 feet+)
They cited insufficient vacuum, in particular, as a problem for EFI-ed F-series motors when running hotter cams.
A regrind of stock was what they recommended.
HTH someone else looking at this decision.