HOW MUCH POWER DOES A Q-JET 305 MAKE? HOW MUCH POWER DOES A TPI 305 MAKE? WHICH ONE MAKES MORE POWER? HOW MUCH POWER CAN I ADD TO MY 305 WITH PORTED ALUMINUM TFS HEADS, A MILD COMP CAM AND DUAL-PLANE, CARBURETED INDUCTION SYSTEM? WHY DID THE IRON Q-JET INTAKE AND CARB MAKE LESS POWER THAN THE TPI LB9? CHECK OUT THIS VIDEO WHERE I RAN TWO DIFFERENT TPI 305 MOTORS, THEN PERFORMED A TYPICAL HCI UPGRADE ON EACH. BOTH TEST MOTORS STARTED OUT AS TPI LB9S. TEST MOTOR NUMBER 1 RETAINED THE TIP INDUCTION SYSTEM, WHILE TEST MOTOR NUMBER 2 WAS RUN WITH A CAST-IRON Q-JET INTAKE AND SMI Q-JET. WHY THE BIG DIFFERENCE IN POWER?