Desk Top Dyno
Is it a disc or some type of software? Do you know if it's still available?
I got it on a disk back when Windows 95 was a thing. :D
There was one update to it at some point that I downloaded and have never had a problem with it running since them.
No idea if you can still get it. Sounds like someone found it someplace, but I haven’t looked for it myself.
What I have won’t drill down as far as things like header tube length and collector size, nor will it do things like ported intakes. Just basic inputs like dual plane, single plane, EFI, small tube headers with open exhaust, things like that. So for some stuff like an AirGap that can kind of work like a dual plane down low and a single plane up high the program is just a guess.
All I’ve ever done with it is play. I looked at different possibilities and help people before with it, stuff like “stroker vs. ported heads” but nothing all that scientific.
I also bought the Desktop Drag program, but that’s even more of a guessing game. Fun to play with and see how much I might be helping or hurting myself with a car setup depending on rear gears and such. But I hold no illusions that anything I do on it is anything but a guess at the possibilities.