Benefits of Porting/Polishing Throttle Body?
OK, so I've searched this forum multiple times without success in finding much data on the following:
Is there benefit to porting our throttle bodies? I have heard they are extremely sensitive and can get knocked out of whack fairly easily, so maybe theres too much risk to justify any gains?
Has anyone done this, found gains, and not messed up idle or engine performance/calibration?