Thanks for everyones help, I found one edge that had a nick in it on the intake port of the meteor, stoned and sanded and cleaned up any casting lines , Overall much better quality to my eye than the hutzl understandably. Installed it without a gasket and cycling by hand I heard a "tink,,,, tink" as it came to TDC, so had to install the gasket and the squish measures .66 mm,.025,the hutzl cylinder it measured around .040 or so.
Heres the cylinder installed , note the short circuit button added , other side is the rivet added to allow the brake to work.
View attachment 548372 View attachment 548373 If anyone has both I'd like to see the linkage difference between the original stihl and the hutzl, I assumed the geometry flaw was in the guard slot.