What is the best desktop dyno type software out there for windows? I just want to play around with different cams, manifolds and heads to see what kid of numbers they make.

You've got mail!!!

I'm sure the rest of us would like to know as well!

Don't want to start a software war, but it appears that the most popular software is desktop dyno, but it may not be the most accurate.

Don't want to start a software war, but it appears that the most popular software is desktop dyno, but it may not be the most accurate.
Diddo! I have it and it's ok, but not too specific. I have heard it's one of the best ones out?

I've been playing with ProSim. Although I don't know how accurate it is, I think the main benefit is seeing the effects of changes.

I use both ProSim:
http://www.proracingsim.com/
And EA:
http://www.performancetrends.com/

I use Drag Strip Plus that I got from Martel Bro.s. Only shows HP (very optimistic) but only .2 off in the 1/4 and MPH is right on.