Generally the input and output (first and last in the circuit) caps need doubling in value (47nf to 100nf) and depending on the circuit I’d do the coupling caps too.
edit: there’s also a capacitor from pin 2 of the 741 opamp which connects to a 4k7 resistor, then to the ‘gain’ pot.
the resistor sets the minimum signal level, so that when the gain knob is at zero you’re still allowing some signal to pass, and the capacitor before that helps to form a high pass filter for the drive circuit, I’d increase that too; doubling this cap value will drop the frequency by an octave