Here is a vid of duster with the new engine

408 ci
13.5.1 compression
258-266 dur. 630/638 lift straightline preformance solid roller
dh roller lifters
ross pistons
eagle rods
mp 4in stroke crank
eddie heads fully ported by BJR racing
erson springs
smith brothers push rods
m1 intake
crane gold race rockers
aed 750 carb that flows well over 830 cfm
transmission j.w race trans
greg slack 4900 stall
rear end is a 8 3/4 with 4.86 gears

The U.S. Army needs to contract that car out to use for interrogating prisoners in the back seat with no seat belts and Metallica blasting from a killer sound system.