It’s the same with carburetors. I was at Irwindale last night and stood quietly next to a friend of a friends small block nitrous Camaro while they twisted every screw, nut, bolt, jet, squirter, they could get their tools on. And made zero difference in the huge bog at the hit. Before the next pass I asked if I could play with it. The primary accelerator pump was halfway through its travel at idle and the secondary was blocked up. I tuned .4 in to the car in 10 minutes, in the 1/8th! Mind boggling
