When I talked to Heidts they didn't think their system would support 450-500 HP with slicks on a sticky drag surface. I liked the system and started to purchase it until they told me that. What horse power are you rated at? I do think I would have enough clearance after removing the leaf springs with the Heidts. Just not sure of strength. What type of springs came with your system? Yeah pictures from underneath would be great. Thanks for the infor. Larry