Here is part four of  the  little guide  I've written on  the  Corvair.   People need to use common sense  when  bidding on items,  meaning that you gotta know  what  they are worth.   It makes no sense to pay  twice  the cost for   a  used copy of a book or a catalog when  its cost new is  half what  some are bidding them up to.    The  publications that I referred to earlier are  currently in print and  available new  at  very reasonable retail prices from  a number of vendors.     Buying  an outdated catalog,  makes absolutely  no sense,     Corvair Underground  and Clarks Corvair have their latest catalogs available  for  just a few dollars.   Buying  a   2000  or   1997   or   1988 edition of their catalogs  is an absolute waste of money.   Used copies of the  GM  Factory Shop Manuals     and  used copies of THE  CORSA TECH GUIDE    can be  worthwhile,   just  be certain  that you pay  less than   what     they sell for  new  from   the Corvair vendors.    These aren't rare,  as they have been reprinted and are readily available.    The same is true for     How To Keep Your Corvair Alive  by   Richard Finch.     Another  essential Corvair book you must have is The Classic Corvair  by   Bob Helt  (2001)  ISBN  1-55212-948-9       which    has great info for novices  and hardcore Corvair people.    Popular Mechanics  May  1965   is worth finding.     Consumer Reports March 1966  and Motor Trend  June 1963 are good also.   Back issues of the CORSA (Corvair Society of America)  Communique   are   good for   Tech Tips.    You can purchase back issues from CORSA  or find them on ebay  just  don't overpay for them    with   5000 +   CORSA members there is no shortage of copies.    From 2001   find  FEB    APR     JUL    From  2002  find MAR   JUN  JUL  AUG  NOV  & DEC    from 2003  get  FEB  MAR  NOV  &  DEC   from  2004   get  JUL  &  OCT    and from 2005 get MAR  MAY   NOV  & DEC           These issues have great info and tech tips that will be most helpful to Corvair newcomers.    If you are a fan of YENKOS  get    Jan 2001  & MAR 2006    and    1969model nuts must see MAY 2003 & DEC 2002.      A  GOOD  HOW TO PREPURCHASE INSPECT AN ENGINE  CAN BE FOUND  IN  DEC  2005 issue.      Lastly  there is another great forum  for   Corvair  information and tips     and   that   is    The  Corvair Center Forum           It  is  moderated by the same Corvair expert that  moderates   the  Virtual Vairs   site.       Learn    as much as you can  about these   great  vehicles    so   you  can make the best  informed   bidding   and  buying  decisions    with   ebay   seeking  your fun  Corvair.      You will know more  and  know  what is really  a good buy   and   what isn't.    Be informed   and  use  common sense  and good judgement    and   please   be informed  so you avoid   scammers and  have   the   best   ebay  experience.    Drive  those Corvairs   when you  can    as   they  are  fun to drive   when properly   rebuilt  and sorted out.    Good luck.