IS BIGGER REALLY BETTER? HOW MUCH MORE POWER DOES THE LS3 MAKE COMPARED TO THE LS2? ARE THE RECPORT 821 LS3 HEADS REALLY BETTER THAN THE CATHEDRALPORT 243 LS2 HEADS? WHICH ONE HAS HIGHER COMPRESSION? WHICH ONE HAS A BETTER INTAKE MANIFOLD? WHICH ONE MAKES MORE TORQUE? WHAT HAPPENS WHEN YOU START CHANGING CAMS, HEADS OR INTAKES? CHECK OUT THIS DYNO COMPARISON BETWEEN A FACTORY LS2 AND FACTORY LS3 RUN IN STOCK TRIM, THEN AFTER MINOR MODS, THEN AGAIN AFTER EVEN MORE MODIFICATIONS! HOW DOES THE 6.0L COMPARE TO THE BIGGER 6.2L?