THE PLT WAS INITIALLY CLEARED TO LAND ON RWY 32, BUT HIS CLEARANCE WAS CHANGED TO RWY 22. ALSO, THE PLT WAS ASKED TO KEEP HIS SPEED UP. HE STATED THAT AT 200 FT, HIS AIRSPEED WAS INDICATING 89 KTS & HE ELECTED TO LAND LONG. AFTER TOUCHDOWN, THE ACFT BEGAN PORPOISING. SUBSEQUENTLY, THE NOSE GEAR & PROPELLER WERE DAMAGED, BUT THE PILOT WAS ABLE TO TAXI THE ACFT TO THE FBO.