Greg, Jody and Chad, thank you very very much!!!
You guys confirmed what I was thinking. Sorry I did not mention my set-up:
6.0L LY6 in a '69 442.
GM Performance Parts intake
Setting it up to look like a W-30
Project Red Rocket off this page:
https://lateral-g.net/forums/showthread.php4?t=27033
Chad, special thanks to you as you have the exact same deal as I. I am planning on eventually going boosted with the Vaporworx set-up and need to give Carl a call to talk to him about the controller he is working on that is vacuum referenced.
Anyways, thanks a lot guys!!! I will let you know of my progress!