I'm with Bob, there is a hump, but it did not adversley affect the installation of my new carpet, or seats. Some have argued that the pieces are a bit pricey, maybe, but what you get is top quality parts that fit perfectly, and very, very good installation instructions including templates where you need to cut sheetmetal, etc. Highly recommended. The nice thing is that ground clearance is not affected at all, they tuck up underneath nice and tight.
69 SS, ZZ430 Look-alike, Tremec TKO, Hotchkis Suspension