92 Bravada won't start warm

Engine starts great when cold. After fully warmed up, it cranks but won't start unless I push the gas peddle all the way down and hold it there while it cranks and then it starts and will run fine if it idles for a few seconds before putting in drive.

You might start with checking for codes.
How is the base timing?
Any check engine lights?

Check engine light does not come on with this problem.

Might sound crazy but possible catalytic converter. Cousin had a jeep that ran fine until it warmed up then it fell flat on it's face until the cat was swapped. I am probably completely wrong but something worth checking

Check engine light does not come on with this problem.

Not all problems set a check engine light but a good scanner check may show the problem.
And as said check the cat. A good vacume gauge will show a cloged cat.
Also a good fuel pressure check may show something.
Good luck MT