About to drop out the ported eaton and upgrade to a turbo in my 03, anyone have or heard of HP Twin Turbo? or should I go with with Proturbo Single T-76? These are the only companies my shop will install..Which company can I rely on, I want to put near 700 hp at the wheels and still use pump gas. I've heard that HP makes great low end power but that's only going to spin my tires, I rather have hard top end but you can also upgrade to bigger twin set up with HP. I've always thought single is better? Anyone can help would be real cool