im not building my car to specifically do just one thing great but multiple things well. i want to notch the frame for bigger tires and have found some info on various sites. while watching hot rod garage they notched and mini tubbed Luckys chevelle. the kit they used had additional supports for the inner side of the frame. my question is if i cut the frame at the seam and weld it back with plate steel could i run some dom tube from side to side like a pickup truck has under the bed? would it be beneficial? i plan on using the qa1 coil overs so the stock coil springs won't be there anymore.