Dyno Software - Plot Power Curve

[bladerunner]

So I have searched around for dyno software that can plot graphs with just HP, torque and RPM figures, but most of the stuff I am seeing is specifically designed to help you pick engine components.  I searched the forums and the ones folks recommended are like this and don't plot graphs with these figures. Anyone know about some free software that plots these? Can anyone create a graph? Figures I am playing with are:
335 HP @ 4500 rpm
415lb ft @ 3500 rpm

[audrima]

I had a program called dyno2000 that might do that. don't know what happened to it but it was nice.

[ehjorten]

I've got Dynomation.  Send me your specs and I'll run it for you.

[Yankeyspeed]

G techs are nice too. They can tell if something has improved or not.

[bladerunner]

Well I am trying to decide/figure what would be a better crate motor. I am looking at the GM 350 HO. The sheet states 330 HP @ 5000 RPM and 380 ft/lbs @ 3800 RPM

This is the dressed up deluxe version
http://www.jegs.com/p/Chevrolet-Performance/Chevrolet-Performance-350ci-330HP-HO-Deluxe-Engine/749874/10002/-1

The other engine is the Tuff Dawg 383 stroker with 335 HP @ 4500 rpm and 415lb ft @ 3500 rpm.
http://www.tuffdawgengines.com/chev_383_335hp.htm

Now I am assuming that these figures are gross not net. Just want to see what would be the best bang for my buck. I like the 350 HO as it has a one piece rear main and Vortec heads, so there is a lot of upgrade potential down the road.

So is there a way to get a ballpark of what I could expect to see numbers wise in my truck by using a virtual dyno?  I know you can just guess by assuming 20% loss due to the transmission, so I figure for the HO I would be in the mid 200s for HP and around 300 for torque. The stroker would be similar power and mid 300s for torque.

[ehjorten]

That comes down to what you are going to use it for  The 383 that you are looking at is going to make more torque cause of it's longer stroke and it is going to have a lower RPM limit due to the same (assuming all other things remain the same about the rotating assembly).  Other factors to consider are your gearing, tire size and the speeds at which you intend to drive it.

Drivetrain losses are really a moot-point because you aren't changing any of that from engine to engine.

[bladerunner]

I will just use it cruise around town, so typical driving speeds. Current tires are 32x11.50. Geared 3.73.

Honestly I just want a reliable engine that will make more power, sound good and accelerate well. I don't need a fire breather.  I am leaning towards the HO due to the warranty.

[pholliday1]

In the world of reciprocating masses a difference in a warranty can mean a difference of thousands of dollars .******READ CAREFULLY***