It’ll work fine but watch for overloading the electrical circuit and certainly don’t plug them both into an extension cable. One compressor will still do most of the work as the pressure switches won’t be set exactly the same, the second one will only kick in when the first one can’t keep up. You can safely alter the pressure switch with the spring tensioner inside the switch cover. There will be no increase in pressure, just more flow, your regulator will stabilise the output pressure to the gun.
