Jet location (Again)

[Gelf]

Application: Vauxhal 2 ltr zlet turboI

Im just about to fit WI, I want to locate the jet on the plenum chamber just before the throttle opening. The length of the inlet runners look about 10 - 12 inches.

The inlet pipe of the plenum chamber is horizontal, which has a 90 degree bend down onto the vertical throttle opening. I know the jet needs to be 45 degrees up on the horizontal cross section.

Do i fit the jet on the horizontal inlet part of the plenum or on the 90 degree bend and aim the jet directly at the butterfly openning in the throttle ?

Your help is much appreciated.