Generation IV External Engine - Vacuum pump HP?

I am already working on more HP for the LS Vega for next year. I am looking at options where I don't have to change the base of my build. I will be keeping the 416 L92 block setup. right now I have plans to replace the stock heads with something more extreme, going from a good sized hyd cam to a solid setup. So i was thinking about adding a vacuum pump. If I was in the 700hp range could this be an option for a few more HP? what kind of gains do people see.

If I need to offer more info on my build just ask. Anything else anyone could suggest for more HP would be great. Always looking for ideas. Looking to stay N/A this next year also.

Thx

we have used vacuum pumps on our top sportsman and super gas cars. its usually good for a few extra ponies. and it keeps the motor from building pressure too!

what vacuum pump are you guys running?

Big side benefit is getting rid of the stock PCV system and eliminating anything to do with the intake while providing proper ventilation.

How does a vacuum pump aid in bringing in first air. I thought it just controlled vacuum also helps seal rings? Correct me if wrong someone was ranting about this in another thread.