Help Get me Started

[edfiero1]

Hi Guys - Another Newb here.
I want to try to learn to tune. I've got a couple of books, but haven't found one to really get me started.

I have a 1227747 ECU, that I plan to use drive a 4.3 L Throttle body Injector on top of a 2.7 L , 4 cylinder.

I know I obviously have to adjust the Number of Cylinders parameters, but what other adjustments should I be looking at before I even attempt to turn the key? For example, are the VE tables, fine to start with the stock values, or do I have to lower them by a factor of 2.7/4.3, based on the lower displacement of my engine? I don't see a parameter jumping out at me of where to set the displacement.

Thanks