Originally Posted by KULTULZ
I was going to try and stay out of this misinformed topic, but if what you say is correct, why does one have to remove the vacuum source to set base timing at recommended curb idle?.
Because depending on the tuner and the idle requirements of the car, sometimes the throttles are open enough to send a tiny signal to the ported hole. I'm not saying its right, but to properly
set base timing, the vacuum should be disconnected regardless of the vacuum source.
But on anything I do (street torque stuff mostly) the ported source is safely covered and showing 0-.5"