[coyled]

Duane, it depends on how well set up your current carb and intake are? A well set up carb, like a barry grant, for a specific application, can work very well under performance circumstances. An out of the box carb with just jet changes is usually less than optimal. Not to knock the holley pro-jection, but injection that sits at the top of the intake, still has to go all the way down the ports to the head. There is lag time just like a carb. Ported fuel injection has injectors right above the head so there is no fuel lag. Issues like intake plenum volume in a single plane which tend to hamper low end response in a carb do not exist with ported fuel injection. I am running a speed pro computer on a high hp 358 naturally aspirated and am very happy. Now, learning to use the lap top for tuneing is not easy at first but is pretty simple once you figure it out. Getting peak performance out of a carb is way harder, more time consuming and more of a trial and error process. The wide band 02's make the datalogging/tuneing process easy. Scott