Don,

The heads are 440-1 cnc ported by Muscle Motors. Mike did a little hand work on them too. They flowed mid 380's at .700 The motor is a

528
World block
440-1's
R&R rods
.682 roller
440 source crank
T-Ram
2 Alchol dominators
Flowmaster mufflers

Made 923hp and 815ftlbs