Well that verson is 3.05, but on some of the files they say verson 3.07 for some reason, just open the files in a word processor and change the verson to "3.05" and it will work.... DD2K is not accurate, it is more for Cam comparisons and head comparisons, i dont think it will be very help ful to us, its very helpful to the muscle car guys because it has tons of cams to compair.... the only way i can really see it helping us is, seeing power gains w/ a turbo or nitrous, which has already been covered by alot of people on the fourm... but mess around with it and see what you get, good luck