I just finished my 72 Duster, it's a mild steel chassis car with coil over front and 4 link rear weighing in at 3200 with driver.
The engine is a stroked 440 to 526 ci Indy SR heads, 1050 dominator, 12:1 compression, 3500 9 inch converter, 9 inch with a 4.10 gear, 14x32 slicks.
So far it's run a best of 10.26 at 131 at Las Vegas.