Welcome to the forum!
What is the casting number on the heads?
95 Caprice Wagon: All the basic mods, Tri-Y headers, SpinTech Exhaust, 52MM TB, Bryan H Tune, Rustic control arms, AirLift Bags.
95 9C1: LE218/224 .571/.566, "561" alum heads, 1.6 RR, beehives, 54MM TB, ported intake, 2.5 catback, Hooker Aero Chambers
73 Nova: Yellow hole where I throw the rest of my $$$
83 Wife: Stock