I have one that was rebuilt about a year ago. I just pulled it because I am swapping in a fuel injected 302 V8.
Since rebuild it has about 40000 miles; The following was done during the build.
All internal parts brand new.
Crank reground, Heads shaved 10 thou, fully ported and polished, gasket matched, Throttle body bored 3mm, K&N FIPK with prefilter, etc..etc.. Will sell complete with the 5 spd R series transmission and a host of spare engine parts to put another one almost together.
Need the cash to complete my swap.
$1000.00 and its all yours