The charge air cooler (intercooler) should be able to be installed and impact your radiator toptank temps minimally as long as you have a good electric fan, good baffling, etc. I personally think using this as the primary cooling is best as it seems a lot of consensus here is. Then you can use a injection system as additional insurance or with a race tune and race gas. Anderson Motorsports makes a $200 system called Mr. Freeze and I've seen it add 100 rwhp to a non-intercooled Vortech T-trim car.