Tips for working with red lights?

Hello! Im working with a canon ae-1 and Kodak gold fim. For a project I'm doing, I'm experimenting with photographing lights of different colors. Every other color has been easy enough to work with, but red always comes out with incredibly low contrast. Moving the aperture one stop lower produces some change but it is minimal.

I have been advised to switch to 800 T film for it, but it might arrive after the project is due.