The brake booster is a bolt on from CPP. It says you do have to drill a few bolt holes in the frame for it to fit in. I'll be out there tomorrow! I noticed in your photo that you have DOVE-C heads as well. Is that engine out of a lincoln? What year? I think you said it was a 429. Mine is either 429 or 460. Probably 429 because of the stock 2 barrell carb and intake. Did you use a wiring kit on your truck or just make your own? Thanks, and keep posting!