Quote Originally Posted by sanderson231 View Post
I selected TPI from the drop down for intake type. Select dual plane, high flow intake with no other changes and you get 295 HP @ 5000 rpm and 360 ft-lbs @ 3500 rpm.

I have limited experience with DynoSIM but on the few engines I have modeled it seems close to the GM published SAE net rating. Why even talk about gross - most cars need accessories.
Because gross is what an acurrate engine dyno would reflect in testing you see from the magazines and Richard Holdener. Well aware that NET testing with a full intake system, full exhaust with mufflers and what not will cost 30-40 hp. For a comparison purpose it is good to know. Fuel injector sizing will also be off gross hp.