Hey guys I have a 97 f-250 and I'm looking for more power and fuel economy if possible. I'm shooting for the 500 horse region. I have the d66 turbo, cxracing intercooler, mbrp 3 in down pipe to 4 inch exhaust, s&b intake, the php hydrachip, built tranny (good for 600 horse and 1100 torque) and...