Originally Posted by camaroman7d
Leejoy, Yes you have to take the carb off and turn it upside down (you probably want to drain the float bowls first). Opening the secondaries should be done before drilling. Meaning drilling is the last resort, you don't want the secondaries opened too far either. What the drilling does is lean out the idle a bit. With long duration cams sometimes, that is the only way to go.
I already have the secondary throttle plates cracked open a bit. perhaps I need to do more.