I ran a MP70 with a 96. A/R. I really liked it spooled good and put out good power for my 5.3 in my 1500. I am sure it was would be plenty for your Colorado. I dont think it would hurt to put a MP76 with a .96 AR. I wouldn't have got rid of my Colorado if they would have had the 5.3 in them when I had mine. That will be a sick ride.