408 based on Magnum block

-RHS 360HPST iron heads, 2.02/1.60

-Hughes 236/242 @ .050 Hyd roller .557/.521 lift

-stock Magnum hydraulic lifters

-Dove/Racer brown rockers 1.6 intake 1.5 exhaust

-Performer RPM Air Gap

-Holley 870 Street Avenger

-1 5/8 x 2 3/4 dyno headers

-91 octane pump gas

-12.5 manifold vacuum @ 950 RPM

-398 CTQ @ 2000 RPM

-542 CTQ peak @ 4300 RPM

-520 CHP peak @ 5900 RPM

-500 CTQ from 3200 to 5200 RPM

No time to try any tricks, would have made more upper RPM HP with an open spacer but customer did not have the room to use one.