November 15, 2010

I HAVE AN 02 150 4.6L HAVE INSTALLED PERFORMACE SETTING, TIRE REVS., AXLE RATIO AND RETARD TIMING -5.
I JUST DON`T UNDERSTAND HOW TO SET THE SHIFT POINTS AN OR WHAT IS THE BEST SETTING FOR THIS MODEL TRUCK. WHAT ELSE DO I NEED TO CHANGE FOR PERFORMANCE AND ECONOMY.