Mallory 685 window switch to turn on second pump.
I can set it to turn on at 2500rpm and turn it off past my rev limiter. Does anyone see a problem with this
The only reason I want to do this my pressure switch does not turn my 2nd pump on till 6-8lbs of boost. I want it to turn on earlier. Buddy sold me the wrong pressure switch. I could also use the switch to turn on my meth/water kit


