[Colorado Expat]

Revving hard when I spray the bottom of the brand new throttle body boot and the cleaned and new o ring injectors. The boot is tight. I'm stumped at this point.

I presume you're spraying starter fluid? I'd look at the injector o-rings - maybe they're just a bit undersized, or a bit of debris it keeping them from sealing...

If the ether is getting sucked in, then it's likely you've got unmetered air entering as well, which obviously will mess up the fuel/air mixture.

 

[Colorado Expat]

The o rings are new. I don't know what "unmetered air" is? Could you possibly simply explain that problem? Thanks.

I was thinking that although new, they may be a bit undersized, or (as mentioned) there may be a bit of debris keeping the o-ring from sealing.

"Unmetered air" is air that is drawn into the intake that does not go through the throttle body, thus is not accounted for by the fuel injection computer, leading to a bad fuel/air mix and subsequent poor running. "Metered air" is the airflow that is measured by the EFI system to determine how much fuel to provide. (The throttle position sensor is the sensor used by the EFI to determine who much air the engine is drawing in. Other EFI systems can use different means of air measurement, whether mechanical or electronic.)