my question involves which pontiac engine is by far considered the best to have ever been built. NOW I AM NOT LOOKING FOR PERSONAL OPINIONS RATHER THAN COLD HARD FACTS! I want to know what block was the best and what year ex.(68 400 HO, 69 455 etc.),what crank and its specs, what cam was the best ex.(068, 041 etc.)and its specs lift duration, which set of heads where the best ever ex.(6x or 4x or mistaken 191's) which rods and pistons and lifters were the best ex.(forged or aluminum or cast or hydraulic or rollers or solid) if everyone could gather there knowledge together and school me on this subject matter. now remember i said ALL PONTIAC ENGINES THAT ARE FACTORY NO AFTERMARKET STUFF! thanks guys, joe