TONY AND DAVID.
But there is also something else for you to consider on this subject. There were more 1965 and 1966 dealer GT's made than factory ordered cars, so it is not always rule of thumb that you must have pressed holes to have a genuine GT. It is always a topic of contention within the MCA and our own so called expert judges in Australia.
Basically whether you have 16-19 mm holes or 1 1/8 hole or even as just mentioned on this forum 1 3/16 holes, or even if they be puched or drilled from whichever side , i think you will be judged on the presentation of the final product more than whether you have what someone deems to be the correct size hole. rule of thumb make it look correct and you should not have any issues if you are competing in concours judge class.
And just for the record my two unrestored GT'S;
one has the punched holes from the outisde into engine bay with one rubber gromet and plenty of room for the wiring to fit through and the other side has body filler/seam sealer on the engine side.
and the other;
has holes which are definately not punched (no lip) but do come with rubber gromets which has just enough room to allow the wiring through.
regards.
PHILL