Help me understand computer options

I ended up going with the Holley Dominator setup because I want to upgrade to a Pro-Charger in the future. I found the Dominator will do about anything you want to do but it's pricey by the time you buy all the harnesses you need. If you want to stick with stock 425 horse, I'd just run the factory computer. You will have alot of extra wiring to figure out what to do with and I'm not the guy that knows ANYTHING about it! LOL