Are there any differences in the limp home mode (resistor network) between the 305 and 350 prom? Or are they the same?

Reason being, is I want to start burning my own chips for a 350, but I only have the 305 prom, I was wondering If I could just rip off the 305 part, and leave the 2 resistor networks, and burn a new 350 chip and put it in place of the 305 one? Is that possible, or am I going to have to get a used 350 chip and go from there?

Thanks!