I am running the TSP 1 7/8 and I don't have any complaints at all. They were easy to install and fit great. There were no clearance issues of any kind. I would most definitely buy them again and install on another car.
TSP 1 7/8 LT, ADM Race Cold Air w/ Race Scoop, GPI SS3 LS3 Cam, Powerbond UD, 3.91 Gears, GPI Posi Mod.