The car came from the factory with the 429 SCJ dragpack.
I built a 521ci with cj iron heads I ported myself. It has victor dominator hidden under a factory shaker. 12.5 to 1 compression, solid roller 272/284 @ .050 duration. It has a 4 speed toploader with a Mcleod sintered iron clutch and 4.33 gear detroit locker. Has caltracs and rancho adjustable shocks out back. The times listed were run with 10.5 x 28 Mickey Thompson ET Drag slicks.
I only have about 4 passes on it so far and I think it still has the potential for quicker and faster times.