im throwing codes 3,7,14 there are to vacuum lines on the firwall and only a spot for one on the z6 manifold, when i plug one of the hose into the one spot the car stalls, when i let the car idle its fine but if i give it a little gas the rpms jump up and down

 

come on sombody has to be able to help me

 

fix the sensors that obviously arent hooked up right, throwing your three codes. If you need more than 1 vacuum port, use a vacuum T.