No picture now as i took it apart to redo it tomorrow,,,,,basiclly, the exhaust side you cannot instert the drill bit as 2/3 of the hole is under the level of the head. of the intake side about 4-6 mm higher than the surface....

could it be a problem with the TDC location? although i made sure i put it right a number of times, and when removing the head, the first and last pistons were at cylinder head level.....

car is at 180,000 miles, but everything in there looks pristine

I will post a picture tomorrow ..