A '86- '95 carb engine will let you bolt the intake right on. Throttle body engines use different heads, but will bolt the intake on the same. If you get an older engine you need to slot the center four holes on the intake, because gm changed the angle of the bolts on the newer heads. I think you need 350 injectors too. Maybe some one else can confirm that.
'02 TA M6 WS6 hood, K&N, B&M My Cardomain
'91 S10 Carbed Vortec 4.3
'83 C10 SWB stock
'63 Riviera 401 Nailhead