Heres mine:
403/auto. ws6 4wheel disc, 8 inch honeycombs, ac, defroster etc etc.
The 403 is very buildable... I have:
Bored +.040
Edelbrock performer rpm cam, intake.
Jet performance stage 3 quadrajet.
Comp Roller rockers
TCI street fighter 10 inch converter.
Stock distributor, with Accel module/ 300+ wires
Dynomax ceramic coated headers, 2 1/2 inch exhaust with hpipe.
Eaton posi w 3.08 gears
#8 heads from early 70's 350, #5 heads( the awesome ones) in my garage waiting for a rebuild
It is a serious beast, power all the way up to 6k, which I never go past and only did 6k once or twice in 10 years. I love mine, and you will love yours as well, even if you leave the motor stock.
Edit: Also did a 13.3 with the old 2.73 gears about 8 years ago everything else the same.