I frequent Pennock's Fiero forum and spied this:
'88 and many good things for sale
The thing of interest in this bit is a w41 quad 4 rebuilt and with 80,000 miles on it. He doesn't list how much he wants for it, but I bet somebody could get it cheap.
I don't have time/money right now, but if somebody's in the MN area and would like a nice motor (if for no other reason than for the head and cams...) you might check him out.
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Sleeper style, they don't see it coming that way.