I have an RCERTL 2004 version of the  AMT 1969 Corvair kit, and I've just assembled the engine to copy it for a rat rod I'm making.  I had to file/sand every flat mating surface on it to avoid large gaps.  The engine fan shroud would not fit over the fan; I filed both mating surfaces for the fan, but finally got out my large reamer and opened the hole in the shroud.  Very disappointing.  I also have the 5 engine parts pack Corvair; I used the other engine because it isn't all chrome.  BTW, the c