20mi lead up food

Had trouble last week with gi on 17mi run.
So I will log food day before.
I am trying to follow the core diet nutrition plan.
Day before:
Big breakfast: 2 bacon and egg tacos and a bagel w cream cheese
Balance bar
Turkey sandwich
Vitamin water
Salmon w couscous
A little ice cream. Very little...
Morning of: apple sauce and protein powder. 1:10 prior to start. Couldn't get myself up 3 hrs prior to a 6am training run.
1 cup coffee
No bm
Ran fine. 20mi in 2:56:36 in some pretty warm weather 70 or so.
Drank a couple bottles of perform. I had a pickle juice sport and a powergel 15min before starting.
Then a gel every 30min for the first 120min. After that I had a clif block every 2mi from 2:15 to the end. Stomach started to sour a bit by the end. Didn't like the blocks. I will try 1 more gel next time. That way I will only start the blocks at 2:45 to 3 hrs into the race and there won't be much further to go at that point.