We had a guy come to the dyno that raced in the Pro-5 class with his Mistang. He decided just to stop by for fun before racing at Heartland Park for a national meet. He assumed his motor was dialed in. When he hit 4,000 rpm, he was already way,.....lean. We went up three jet settings, adjusted timing and he put out 900 HP. He was extremely happy for two reasons, 1- he would have melted his engine being that lean. 2- we found 32 more HP just in simple tuning. We made 5 full runs and cost him $160 (2 hrs.) for shop time. Said he has $30,000 in the motor. He kissed me on the forehead for saving his engine !
