I happened to install new injectors ( i had 3 go out) and as this was the first time I've done this without supervisionon I used my wits and my trusty haynes manual to aid in all of this. Problem is I've seen it done by someone who made it look too easy and I know have vacuum hoses without a home.
I thought they were plugged in correctly but after starting my car it was obvious they weren't.

Where can I find the diagram?

I looked in haynes but the car that they're using has a different setup and no good look at the ins and outs.

any help is appreciated.

91 Z28 everything cept bose and leather. K&N , Hypertech, Firehawk SZ-50 EP's, Flows, all the basics.

 

You're going to need to tell us a little more than " i have vacuum hoses without a home". WHich vacuum hoses (i.e. location) and how many are still disconnected? Now on my GTA, the vacuum hoses are routed like this. :

1. there are two vacuum ports at therear of the plenum on the passenger side. The larger of the two connects to the correspondingly larger hoses going to the hvac unit (this hose has a check valve and has a t-connection in it right before it connects to the plenum). The smaller of the ports connects to a vacuum hose going right to the fuel pressure regulator underneath the plenum. I believe on your car there is a MAP sensor mounted there so there is probably another small vacuum hose running from the sensor to a small port. 2. On the other side of the plenum on the corner is a real big vacuum connection. That goes to the power brake booster. 3. On actual base/manifold, there is another large vacuum port in the middle of it. This is connected to a vacuum hose going to the PCV valve. 4. There is a vacuum line that runs from a port right near the throttle body to a T-connection. From the T-connection, one vacuum line runs to the evap canister. The other hose from the t-connection goes to the EGR solenoid valve mounted on the coil bracket. Another hose goes from the EGR solenoid valve to the EGR valve itself.

 

This should give you a general idea of where all your vacuum lines should go.
Vacuum Lines