Thank you. That's very close to what I found on NADA:
Year Car Engine NADA listed MSRP
1984 Fiero 4 $7,679
1985 Fiero 4 $8,495
1985 Fiero GT 6 $11,795
1986 Fiero 4 $8,949
1986 Fiero GT 6 $12,875
1987 Fiero 4 $8,299
1987 Fiero GT 6 $13,489
1988 Fiero 4 $8,999
1988 Fiero GT 6 $13,999
Trying to write up something for the Newsletter and my values weren't making sense from for 86 & 87 Iron Dukes.