I have a 2008 Mustang 4.6 that is full bolt on with Brenspeed's throwback supercharger. I am maxxed out and was looking at their b326 shortblock. If they are using the boss 302 shortblock, it can be bored and stroked out to a 368 per Ford's website. Why can't we do that instead of settling with the 326 cubic inches? Are there some sort of clearance issues?