Yeah Desktop Dyno 2000 and Desktop Dyno's Cam Disk 2000. I had the old DDyno and found it harder to model engines. Mainly because the cylinder head air flow could not be quantified. It was easy to generate 1000 hp 302s with a tunnel ram, stepped headers 14:1 comp and a huge roller cam
DDyno2000 is more accurate because you can define airflow. Also with the DD Cam2000 they have a butt load of cams (3500)on the disk taking the gueswork out of the event numbers and what kind of lifter model to use. My next step is to get a copy of Dynomation (600.00 bucks
) and learn how to use it. Its the same program they used to build the BXR manifold.