HELP Camshaft Stuck

["Cary Henry" <caryhenry@hotmail.com>]

I am in the process of trying to install my GP2 camshaft.  I have the motor 
torn down, but I cant seem to remove the old camshaft.  I can get it about 
six inches out but then it jams and won't go any farther.  It is also very 
hard to turn at this point, and I don't want to force it.  I have removed 
the fuel pump and distributor drive, and just can't figure out what to do.  
Please help!
Thanks,
Cary