I want to run a single turbo, but it needs to spool quick Horsepower goal is 1200 to the tires. I was looking at the GTX4508. I've never ran a ball bearing turbo but from what everyone says they spool good. I originally wanted the 4202 but 1000hp just doesn't seem like enough. Am I crazy to think the 4508 will get me close to 1200? and is it any larger than a S400? Id like to keep it in the valley and I already have an S400 kit. Are there any other turbos that can get me close to my goal?