I am trying to ID this engine/heads. Here is a shot of the heads without the intake


And here is a shot of the bottom of the intake (Edelbrock Performer RPM 7101)


I was told by the previous owner that this was the 330hp crate engine from Summit - with Vortec heads. These don't look like Vortec heads to me and the intake is not for Vortec heads. I just want to make sure that I am seeing things right since I am new to working on SBC's. Any help?

One other question - why are there 6 water outlets leading to the intake, but 2 of them are blocked off by the intake? I can see coolant inside the port on the head that is blocked by the intake, but it doesn't make sense to me to block it. What's the reason?

Yet another question - there is rust above the water ports from the leak. I can put a new gasket on properly, but should I be doing anything else about the rust?