CNC Motorsports built my Dart block 427 stroker short-block assembly and did a really super job!!! Additionally, I have a full season on the engine now and it is holding-up really good. So CNC did everything right.
Also, I'm running 23 degree Dart Pro-1 230 heads and the engine is making around 734 HP at the crank! I have it in a tube-chassis Cavalier (2100 pounds race weight) and the can runs in the 8.90s @ 150 MPH in good air. Corrected air would be 8.77.
Warren