Again, listen to Danny
The predator is a good ECU mappable (iirc for free by Andy still included in the purchase price?) by almost everywhere as it's megasquirt based. Only works on single plug looms though, but I'm presuming thats what you've got.
There's plenty of people now who have gone boost from various directions - full on homebrew budget builds to balls out mega-power cars. The best bit is here on saxp there's a lot of people willing to give you help where they can.
