hey guys i just changed out my intake manifold gasket with a mr gesket one and it took me liek 4 hours and i would hate to do it again but i didn;t even think about it, on the manifold ( performer RPM) it has collent holesin the center and in the front but not on the back. now the gaskets i took off were the same and the one si put on had the openings in the front and back but no middle and i didn;t relize this until everything was one and the dist was in and i wasn;t takin it back out lol. so guys wuts gonan happen if i run it now? will it just cool half the engine or should i be ok?? please let me know. thanks

 

well the middle holes are for EGR not coolant. and i haven't ever seen a performer rpm with egr before.

 

i don;t have EGR, i have Carbed 350 with s/r heads. my intake has an opening in the middle and in the front but not in the back. i am pretty possitive they are all coolent crossovers

 

There are no coolant passages in the center, on any head or on any intake.

They could be the heat risers for the old fashioned style choke.

The older carb's chokes used heat from the exhaust to warm up the spring inside, instead of electricity like the newer carbs (and instead of Ford that just used the heater hose ).

The heat was brought up to the choke coil from the exhaust.

Here's a pic where the choke coil attaches to the intake. Does yours have that?

 

Here's the underside of the intake.

If you look close, you can see that passage where the two ports connect together, then go up to the choke coil.

 

nah mine doesn; have the provision on the top for the choke. i ghuess it is just exhjaust, thanks

 

Mine does, too. That's what the block off plates are for: