This may have been covered before, but on my car when I am in high I can just barley press on the pedal and it goes into neutral. I think its a clutch adjust ment(the three screws?) But not sure. If so what way to turn, in or out. I hope I phrased the question right. Its a 26/27 transmission.
If it doesn't slip in high gear when your foot is off the pedal I would leave it alone
Sounds line you have the linkage too tight. You should be able to push the peddle down a little before the clutch is released. Here is what the adjustment should be:
Thank you both for the advise.