I have mixed feelings...I had 4:10's and have gone to 4:56...the 4:56 is better for me on the street. But the 4:10's seemed to be better on the strip...let me qualify that...I think the 4:56 will be much quicker in the quarter, but learning to control the truck is really difficult. I am still struggling with traction issues for the strip...
You will note that I have about the same hp as you.
Bottom line: this is a street truck and the 4:56 is more manageable and easier to drive with the "shorter" 4:56 ratio. If it were going to be raced more I think I would go back to the 4:10...
Graduated from Toms River in 1961 (GULP!), and there was only one Toms River HS at that time!
Roy