Just made a solid 500hp on the dyno with a set of 2.50 Ram Air exhaust manifolds, in the car it has a mandrel bent 2.50 Pypes system behind it with Dynamax mufflers, love it will never go back to headers for the street
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71 Goatman
Hot Rods & Horsepower.......A diease for which there is no cure.
71 GTO, 463, SD 295 d-port heads, 10.75:1, RPM intake, 502hp/560tq @ the crank, 200r4, 10" Continental convertor, Bullet 234/244 cam, Cliff's Q-Jet, 3:42's w/Eaton True Trac, 5 Power Tours. New performance numbers coming 
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