I am with Power Brake Service, we do performance brake upgrades and we need to get ahold of any of the Typhoon, Syclone, turbo GM trucks of that era to do a video of. Turbos rob vacuum from the brake booster and we retrofit hydraulic brakes to solve that. Check out my page to see what we did with a Turbo Buick and a T-bird SC, we've done the Turbo GM trucks before, but want to do a video to show clients how to install it, please let me know of somebody in the community in Southern California.