It doesn't look like I'm going to be selling my 468 now, so I'm gonna try to keep going on the project (if the wife lets me!).

So I've been asked if my motor is an open or closed chambered head motor. All I have is the short block right now, and as I understand it, you can run whatever you want, open or closed, it'll just change your CR. Is that accurate?

And if I'm building strictly for the strip, how much do I gain from rectangular ports as opposed to oval, keeping in mind that I'm only hoping to turn about 6000 - 6500 rpms and the budget is strictly impaired.