Glad to hear it's running right. Hearing detonation is the worst sound in the world. I always get out of it and re-tune the car to prevent it detonating. Are you still using the FMU? If you are, junk it. With the addition of 42's, you shouldn't need the FMU anymore. It's just a band-aid for the fuel system.
How many psi are you seeing? Get those 60' times down and you'll be loving your car!
Happiness is being blown!
Dan