would 350 heads off of a 89 iroc z-28 fit onto a 69 350 block and then would the edelbrock TBI intake (with EGR) fit onto the 89 350 iroc heads.

thank you much!!!!!!!

 

Not sure about the TBI, but unless the manifold comes with the heads the heads wont fit on the classic. 87+ changed the manifold to head bolt patterns.

 

the heads will fit the block and the intake should fit the heads, i think ( not 100% sure).

 

That combination of parts will all bolt up.

OBTW re. your other post:
The knock sensor goes into the coolant drain hole in the pass side of the block, instead of a regular pipe plug. All small block Chevy motors have had the same hole in the same place with the same thread (1/4" pipe) since 1955, so you won't have any trouble with a knock sensor.