Q: I use an overdrive for my distortion sound on my guitar, and I now have a boost pedal, too. Should it go before the overdrive or after it?
A: Try it in both places to see what you like best. You won’t hurt anything either way.
With the boost before the overdrive, it will increase the amount of distortion and compression in the tone.
With the boost after the overdrive, it will make the overdriven tone louder, without increasing the amount of distortion (unless you boost so much that you overload the input on your amplifier).