Chime in with suggested cam spec's 408 build

mike used the smallest voodoo solid roller number 40200730 ..231/237 @ 50 ....555/566 lift...with a 1.5 rocker in a build with the small mopar same as eddy's alum head ..750 carb...... 10 to 1....air gap intake ....it made 570 foot pounds of torque from 41-4450 ...525 at 2500 ...525 hp at 5400 with that little cam ....you build could use a bigger cam like his last monster build ...king of the hill small block ...582 hp / 577 tq 239/243 @50 550/560 .....you could use the lunati 40200731 - 237/243 @50 566/578 ...on a 110/106 ...2500-6600 power curve..could put you over the 600 number easy with your better heads