I did absolutely nothing to the front suspension. This motor is only a few hundred pounds more than the 7.3. As for the parts to put the p7100 on, I sent in my a pump as a core and also ordered custom springs and pushrods. After my 350 for the core, I still ended up spending 795 (including shipping) on all those parts. I have 850 into my injectors, 525 in my pump, 400 for the motor, and 100 in my turbos. At all my specs on everything I should see at least 800 @ the wheels according to my pump/injector builder and some other builders