I'm looking to buy a tubular k-member and I'm considering the QA1. Tell me your experience with them. What are the downfalls, short comings, or problems to expect? This is for my 91 notch 408w. Will the motor height change, I plan on re-using the energy suspension mounts I currently have on my stock k-member. How is motor location effected, is/can motor moved back any? is it true the front wheels are moved forward an inch, does this cause problems?