Smokey midget

[Eugene_Faust@wb.xerox.com (Faust,Eugene)]

My son just installed a newly rebuilt cylinder head (new valves guides 
 & seals)  on his 74 midget.  The problem is, that it is now burning 
 oil where it did not burn any before he pulled it apart.  The engine 
 has about 60,000 miles on it, never had a rebore but new rings were 
 put in about 10,000 miles ago.  The dry/wet compression readings with 
 the new head are 140/150 +/- 5 in all cylinders.  Any suggestions?
thanks, Gene