IS BIGGER REALLY BETTER? HOW MUCH MORE POWER DOES THE LS3 MAKE COMPARED TO THE LS2? ARE THE REC-PORT 821 LS3 HEADS REALLY BETTER THAN THE CATHEDRAL-PORT 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?