Found 1969 Z/28 - - paint code X33 D80 Crossram

[92646]

It does not have the fiberglass hood and I would need to track down the inside part of the heater delete because most of the interior is gone. Does anybody have comments on the brake master cylinder not having a power booster? The brake lines look original and I am not sure if its a brake proportining valve or just a mounting place for a sensor with a wire coming out of it. The piece is much smaller than what I have seen before much like a JL8 but the car is not a JL8 also it has a support bracket that mounts to master cyl. to firewall mount. Was there a over the counter brake system that did without a power booster because of the 140 cam and crossram?