Ok, so I dynoed this past weekend, with whats listed below and pulled 490 hp/ 923 ft lbs. I have heard of people breaking 500 with an HX 40, but not very many. AS a matter of fact, most were even skeptical that I had an HX 40 on it to begin with. My question is this, what do you guys think for getting up another 20 to 30 hp and say 50 or so ft lbs??? I really don't want to buy another turbo or change injectors again, I really like the setup the way it is. Anybody got any bright ideas?