hickup

if it still has the "miss", my dyno showed that jog at about 5200rpm and it felt like a miss like you say, my tuner said that it was the spacer plates between the intake and the heads that have a butterfly valve in them to increase tourque and fuel mileage. I can feel them open even when i am wot at that rpm. We can take them out and just put in spacer plates and it will make it a smooth pull