Check out classicautoair.com as an option also. I've installed both VA and CAA. The CAA ECU harness setup is second to none, very clean with great instructions.
Just drove the recently acquired Z28 from storage in SC to my new garage + shop in Macon County, N.C. Appreciation to Allen Koester of Bloodshed Motors, Austin Texas for the superb build. Feels better than new with power to be respected, particularly on the curvy mountain roads in these parts. Hope to meet some of you in the area of Franklin, Highlands, N.C , N Georgia at events.