FULL DYNO RESULTS-2005 4200 ATLAS-TIMING, VVT, CAI, HEADER! WHAT MAKES POWER ON THE 4.2L 4-VALVE, ATLAS (AMERI-BARRA) INLINE 6 CYLINDER? CHECK OUT THIS VIDEO WHERE I INSTALLED THE JUNKYARD 2005 4200 ON THE DYNO USING MEGASQUIRT ECU, THEN RAN A SERIES OF TESTS. HOW MUCH POWER IS IGNITION TIMING WORTH? HOW MUCH POWER DO YOU GET FROM ADJUSTING THE VARIABLE VALVE TIMING (VVT)? HOW MUCH IS AN AIR INTAKE WORTH? HOW ABOUT A LONG-TUBE HEADER? JUST THINK-THIS IS JUST PREP FOR BOOST!

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