Finally got it done up yesterday evening.
It's the very old MPC kit from the '60s that I was gifted from Steve-O many years ago. Basically a reasonably simple rebuild.

Stock body, no mods. The rear door window area was pretty damaged so the rear doors were replaced courtesy of Steve Curbishly who sent me a replacement pair.

I lowered the suspension by swapping the axles from below the springs to above and trimming some material from the spring mounts.

I widened the stock wheels and shaved the spokes for a better look.

Engine is the OHC Pontiac 6 from the MPC '69 Firebird kit built stock with plug wires added.

Paint is Duplicolor GM Cordova brown metallic.

All chrome was redone with Revell spray except the front bumper which I did with BMF to see how much difference there would be.

First, a couple "before" pics

and the "after"

,,,And here's a link to the build album with more pics,,