I seem to have come acros an error on my 08/2002 Silver Angel drawing. Page SA-5 indicates that the spark plug hole center is .332 off cylinder head center with a remainder of the total cylinder radius ( .741) of .409. The cylinder head has an actual radius of .764 which yeilds a circumferance of 1.527. This is a radious error of .023. Placing center of plug hole at .332 seems to set the plug to far off to side of head. I sure could use a little help. I hope that a member who has built this engine can provide me with the proper plug position.