From Mark Schwab. My partner and I built the car. Took 14 months working everyday and about 2200 hours labor. The engine is a full roller, hydraulic roller, rockers the whole bit. KBS builder Jim ( cannot remember last name) had a set of custom 750 Holleys built for us. He would not use the Edelbrock Carbs. Had nothing good to say about them. So the carbs are 750 mid section with 600 float bowls. Set to run on pump gas. Builds about 500 horses with a peak torque of 562. Horsepower from idle to about 5500. The engine idles beautifully. Have gotten in trouble at car shows because everyone wants to hear it run. Nothing like a BIG HEMI. The car is going to auction at the Russo and Steele auction in January. It is in the site now.