Yes, more inductance is always better in a plate choke.
I made a preamp, many years ago, with switchable inductors - four different values. I forget the numbers but the two biggest steps were only 10% different, and it was still audible.
For perfectly comparable performance, you would increase the parafeed capacitor in proportion, i.e. by 25%. However, that might not make as much difference. The parafeed cap value is kind of a tradeoff over the reasonable range.
