Because running a T88 requires a LOT of changes to your car, the least of which is the size of intercooler piping you are going to run. If you don't already know enough to figure out what size pipe to use, how can you possibly know what intercooler you need, how bif your injectors must be, what kind of computer you will need to run it, what wideband sensor to purchase, how big of a line you will need to run from the fuel tank, how many fuel pumps you will need, what pistons, valves, cams, and so on.
Hope that helps.