HOW MUCH RPM OUT OF 275HP TBI

MY 200VRS MARISTAR (V-DRIVE) WITH 13.5x16 4 BLADE ACME RUNS 4400 WOT AND 42MPH. WITH THE OLD 3 BLADE 14x18 IT RAN 4300RPM AND AROUND SAME SPEED. I WAS WONDERING WHAT EVERYONE ELSE IS GETTING OUT OF THESE ENGINES FOR RPM AND SPEED. I SOME HOW FEEL THAT THE WAY I AM PROPPED I SHOULD BE GETTING CLOSER TO 4800 RPM. I HAVE CHANGED ROTOR AND CAP, NEW PLUGS, FUEL FILTER. CLEANED ARRESTOR AND THROTTLE BODY. THE BOAT RUNS GOOD AND THE SAME EVERYDAY. THE COMPRESSION WAS 150 ACROSS THE BOARD