I use Moroso foam for my Hemi scoop. Cut it to length and push it against the supports from the front of the scoop, it won't go anywhere
https://www.moroso.com/sealing-foam-4-x-60-97070/
I've had the B&M Pro Ratchet and the Hurst Quarter stick which is currently in the car. I'll be switching back to the B&M. I know it's trivial but I don't like pulling the lever on the Hurst to get in 3rd gear
I use flour and water for my gravy. I get it to the same consistency in my shaker that I want my gravy then I add a little splash of this to season and get a nice rich dark color. My Grandma used it and my Mom still uses it