Ive been fighting this for months. Car is about 3 tenth off and 18 mph down. It's a topsportsman car with a 665. I'm spraying a 32 on the first stage and a 36 on the second. I've replaced cell ,pump, and coil. Il will lose rpm in high gear and flat line in first. My question is how many pounds per eight mile pass should it use. I weighed the bottle last pass and it had used one pound. That included purging and emptying the lines. It went 4.56 at 150 on that pass. Thanks in advance.