Mild is good for the street and autocross... I see what you did there. Looks like a great combo.Sure:
Forged / internal balanced aluminum 408
AFR 205 Heads
Comp Cams EX 282 282 / 290 duration, 565 / 574 lift
Victor Jr intake
Race Demon 775 carb
Makes 450 RWHP at 5600. 450 RWTQ at 4600. Its tame but built to run for long periods of time.
What does it idle at comfortably? Got a video of what it sounds like?