Forged 426,magnuson running 13lbs ,kooks headers and cats,90mm nitrous throttle body paramount 8.8 3.91differential with 1200 hp axles,chrome moly shaft.also has organic twin disc clutch.zex nitrous with 150 shot.car runs awesome! Just put on 18" Huntington wheels with nitto nt05 305's still know traction. I had it on Dyno but could not run it to full rpm range was running lean from stock 5/16 fuel line,now changed to 3/8 ,it was 548 hp with 619 torque@ 5k . I missed the fuel line issue!! I did not build car I bought it not running was overheated from thrown belt!