Mr. Fender, I am in the process of changing condensers to find out! After driving mine on a 100+ degree day, with over 85% humidity last August, though, I'm convinced that there can never be too much ventilation in a GT40! ;-)
Bill, I will try to get out there and take a picture, but they look almost exactly like the ones installed in Roy Smart's car, pictured above. My car has a rivet affixing the latch assembly to the small rectangular flip-out window. I measured from the rear edge of that rivet to a spot 3 1/2" towards the front of the car to mark my horizontal point, then measured 4 1/8" down from the top edge of the flip out window (based on a total heighth of the window of 8 1/4"). Where those two marks intersected, I drilled my pilot hole.
I used the 3 1/4" snap vents, as it seemed to me that the 2" version might be too small to accomplish much. I drilled slowly with an electric drill as suggested above and, other than a second or two of gritted teeth while squeezing the snap vents into the holes, it was a totally painless process.
Bill, I will try to get out there and take a picture, but they look almost exactly like the ones installed in Roy Smart's car, pictured above. My car has a rivet affixing the latch assembly to the small rectangular flip-out window. I measured from the rear edge of that rivet to a spot 3 1/2" towards the front of the car to mark my horizontal point, then measured 4 1/8" down from the top edge of the flip out window (based on a total heighth of the window of 8 1/4"). Where those two marks intersected, I drilled my pilot hole.
I used the 3 1/4" snap vents, as it seemed to me that the 2" version might be too small to accomplish much. I drilled slowly with an electric drill as suggested above and, other than a second or two of gritted teeth while squeezing the snap vents into the holes, it was a totally painless process.
