So not to start an argument here, but I gotta play devil's advocate.
We use Dynatech ALL the time because they fit amazing compared to every comparable brand I have found....... here is a pic of the box clearance on a 69 camaro small block with dynatech headers. Sorry all we did was install headers, so its not the nicest engine bay! Oh by the way they even drop in from the top. I know its a stock box, but look at the clearance! I would venture to say no problem with the lee box.
As far as the ground clearance, I find they are very good compared to alot of other brands. Depending on your driveline angle (if it is not a stock crossmember and has a bit tighter an angle) you will have a ton of ground clearance, even on a low riding car. Trust me even spending over a grand on Stainless works wont net you any more!
