If this helps you....
A little background:
I have had Pontiacs for forty years. I've always built them up with porting and cams and stuff. I've always had a hard pedal or get one good stop, then the next quick one; hard pedal and no stop. Well I got tired of that in my mid fifties and decided to go to Hydraboost. Did the research and here is my set up in order.
First was rear wheel disc from an S10 and an aluminum master, booster and proportioning valve from an 81 T/A with four wheel disc . That was a worthy upgrade. Then the hydaboost from an Astrovan and hoses from an '81 Cadillac Seville diesel. Instant amazing brakes.
Then after that 12" rotors front and rear and Wilwood calipers all the way around.
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1978 Black & Gold T/A [complete 70 Ram Air III (carb to pan) PQ and 12 bolt], fully loaded, deluxe, WS6, T-Top car - 1972 Formula 455HO Ram Air numbers matching Julep Green - 1971 T/A 455, 320 CFM Eheads, RP cam, Doug's headers, Fuel injection, TKX 5 Spd. 12 Bolt 3.73, 4 wheel disc. All A/C cars
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