am i going to get all foam? beergas users

i just kegged a blonde ale and munich helles on sunday with 4oz of table sugar each. there going to be dispensed with beergas, and picnic taps. I know a co2 setup would be better but i got a awesome deal on the nitrogen setup, cheaper then the co2 tank would of costed me.

so what psi should i set the beer gas at? will it be a lot of foam or should it be normal?

Most brewers will still carb with CO2, and then switch to beer gas just for serving. That said, nitrogen isn't that soluble, so it shouldn't be foamy due to beer gas. You will need to set the PSI about twice as high then if it were CO2, but I've never used beer gasto give you a good pressure. You might want to check out your local gas/welding place on the cost of a CO2 tank; they might even swap you for the beer gas cylinder. Good luck!