[Keithc8]

We tune the ECM on the dyno for that engine. We start with a base tune for an engine similiar to it and dial in some from there. We then make sure that who ever does the install understands that there will have be some final tuning in the car to get it just right. We like to put quite a few miles on them and tune on then as we drive them to dial in the best.
When possible we like to do some tuning on the chassi dyno. Even though we are using pretty much a combination we have done before, we are using different ECM, injectors, wiring harness and sensors in the new engine. What I mean is that even the same brand parts may be a little different from what we got before. Air filters, headers, fuel and how it is all installed can effect the tuning.
The new self tuning stuff that Comp Cams has out is working pretty well on the engines that we have done. If your cars does not run like you want I would see about getting some tuning done when the car was being driven around.

Good luck, Keith Craft