Justin’s GT500 features a 5.8 aluminum block with Darton sleeves, a double-keyed GT500/Cobra Jet crank, Manley pistons (10.2:1 compression ratio), I-beam rods, stock heads, Comp custom cams, and ...

After adding a Pro Comp Motorsports dual-plane intake manifold, a Professional Products damper, Autolite spark plugs, a Carb Shop-modified 750-cfm Holley double-pumper carburetor, a CSI electric ...