Hey, don't feel bad. We all did this, regardless of the make or model for now old muscle cars: we took off the OEM air cleaners, emissions gear, heat shields, choke hot air stoves, etc. Easy to take off, improved the look, etc.
Then, we took off the OEM intakes, cast iron exhaust manifolds, clutch fans and more.
All ended up in the junkpile, for sure. Few of us ever thought of today's value of these parts to restorers, let alone the value of the entire car like Boss 2's, 9's, 428's, 428 CJ's and the like! Heck, for $20 grand in the mid-70's I could have bought a fleet of very fast muscle cars like a 440 Cuda, 428 CJ Stang, a genie Z-28, Boss 302, a Hemi Plymouth and more, likely 15-17 cars in all!
Imagine today it's over $2K for the top dress on most old Ford V-8's in muscle cars. Can't even image the $5K+ for Boss 9 top end and cast iron exhausts!