I need help! please!

[84chevy]

I bought an 84 c10 a few weeks back and i took it through emissions and i failed and the guy told us we need to hook up some vacuum lines so i did and now when you get on it it falls on its face and stales anyone of and idea why it would do this thanks oh and the motor is only a 305

[babyJay]

Since you made vacuum line changes, the changes could have inadvertently affected your dizzy's vacuum advance. Double check that before getting too carried away. If stock, you should be able to remove the hose and put it back on with no noticeable changes, and no vaccum at the hose, when engine is idling. Have a buddy hit the gas, and see if the vacuum at the hose increases with the rpms up.