Hey spiderman

How did you know that I am A BIG guy?

I was wondering today if I should upgrade my evaporator with a new one that can work better with R134. Now before I begin this job, I would like to know if it is difficult and would it help my air conditioning.

I feel like Al Pachino in Godfather III
"Once I thought I was out they bring me back in"

Thanks to all for your help

bob