FULL DYNO RESULTS, 455 PONTIAC, STREET RACING, DYNO BRULE AND MORE. Why is the 455 my favorite Pontiac? It's not just cuz bigger is better! Q-JET VS EDELBROCK CARB TEST-PLUS, ITS A FRICKEN PONTIAC 455! That is about as other guy Big Block as you can get (though it might technically be a small block).