Thermoquad issue

For a streeter, with an automatic trans;
If you shut the transfers off completely; you may experience one or more of several problems;
>A tip-in sag as the transfers take time to come back on line.
>Stalling, going into gear.
>A rich AFR throughout the low speed circuit because by the fatly adjusted mixture screws.
>The only way to make the engine run with the transfers shut off, is with a lot of Idle-Timing. This may and usually does, cause problems in trying to build your other timing curves.
> Cold-start issues.
> hot-running issues
> did I mention the dreaded tip-in sag? You can cover this with pumpshot, but then two other things happen; First, you use it up when you should be saving it for later, and Secondly; because the pump is pissing more gas than it needs to; the engine is a gas-hog in town. My goal is always to use as little pumpshot as is possible.

But if a manual trans;
You can't hardly get away with anything below 2000rpm; yur tune has to be pretty right on.

But if a racecar;
You can get away with a lottachit, that won't fly on the street.