Edelbrock Performer RPM (7577) and 360 Magnum CI heads

MechEngr said

I just look at the kegger that came of the engine and it doesn't have coolant ports on the rear of the intake manifold. I wouldn't have expected this!

Click to expand...

Want to see something uglier?
This is how much smaller the stock intake Port windows are to an Edelbrock Magnum intake gasket... as for advice, how about using an Edelbrock intake gasket.