eaglesguy1981j , I'm running a .040 over 440 with the stock crank and rods . edelbrock performer rpm heads with the 83cc combustion chambers and the same weind t-ram w/ 2-600cfm carter afb's . Its very street friendly and I'm in the low 11's . I'm running a hydraulic flat tap cam . I'm at work and don't have the cam specs but I don't see why you couldn't get down into the 10's . The stealth heads look like the same specs as the edelbrocks . I wish I knew about them when I bought mine . I could have saved some money .