Well got the new beer fridge. Everything is now hooked up. I decide to go all internal. So I know the gas pressure is going to be lower reading now on the Guage. Any ideas on what would be a good psi for 2 pony kegs With a 4 ft liquid line would be? Here are some pics and the taps are an old set of motorcycle grips.
Pressure is determined by desired level of carbonation and temperature. I have mine at 15psi/45°F. This would be way too high for 4 feet of line. I think you should replace the line with minimum 8 feet, if it’s too much you can trim it down.
The chart below will help you determine the pressure needed. Calculators exist to help with line length as well.