[pcww]

I have the Terminator on my Ford Crate 427 with X heads. Started right up. I had an intermittent idle issue which when I reprogrammed cleared up. I can wholeheartedly recommend this system. I have not had "factory " support but there is a factory guy who monitors their forum so you get almost instant answers. I am not a carb guy so wanted something a little user friendly. I have the laptop hookup but the little handheld works very well.
I do not have any experience with any others but felt really comfortable with a Holley product.
I think they are coming out with a cheaper alternative shortly but would stick with the Terminator. That is what is used on Nascar vehicles. Henry