I've got my manual brake system on the car now. I used a Power Master powerbooster adapter plate. This info I found on a thread right here for the part #. I did have to add metal to the top of the plate to completely cover the firewall hole. Bought new a mid 80's master cylinder at A.A. and used a brake pedal rod w/ the metal cup from junkyard mid 80's S-10. I did have to shorten the rod.
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