[billjam]

SC cams will fit straight in without any major mods if you delete the air pump and its drive.
I took lots of photos of how I did it so I'll post them below.
There are no problems with piston to valve clearance and, depending upon other mods, off-boost power is much better and power curve is much broader.

One thing to keep in mind is that the camshaft still needs to drive the turbo scavenge pump. The SC cams usually have two 5mm holes in the end so you will need to fit two roll pins to drive the pump. In a standard car, the heads of the two air pump pulley bolts normally drive the pump.
There are also some minor mods required to sheetmetal and piping. The inlet pipe to the pump needs to be shortened about 30mm and the sheetmetal needs to be notched to clear the outlet pipe. See pics.