I am seeing low boost on the supercharger I installed on my engine. Im just wondering if a supercharger setup is rated at 6psi of boost is this dictated by the engine? these kits(powerdyne) are for V8's with moderated compression ratio. I have a 2.1ltr 7.4:1 CR and I am only seeing 2lbs of boost. I have no leaks and the blower is moving air. could my engine be the problem?