best timing to run for towing 15k
 

Ok so I'm shooting for about 450 hp at the rear wheels. Now I have some work done to it (what I have in my sig. ) it don't seem like it has much power. I took the plate out and added the injectors and that woke it up. But it still not where I think it should be with what I have done to it. So where do I need to go from here.