I connected from France on friday (but I arrived at T3). I had only a carry on and I just needed 45 minutes gate to gate.

I suppose Delta arrives at T2, it is nearer from the Gol terminal T1 (I spent 15 minutes walking from T3 to T1).

One important thing : carry on limit is 5 kilos on Gol (my carry on was 7 but they accepted it).