How realistic and reliable is a obs 7.3 at 400-450hp? I do tow heavy not everyday but I own a business where we use skid steers and other heavy equipment. My truck is a 1995 7.3 manual with 4:10s I was looking at swamps 160/30 or 175/30 with intercooler and e fuel, adrenaline hpop and the t4 setup with either s300 or 364 not sure. Don't want to harm the truck or cut the life in half. Thank you all.