Quote: I agree and that brings up another good point, if you are running a carb that is already a bit small then moving the throttle position will have a greater effect than on the bigger carbs like dominators.
The carb I was playing with a couple of weeks ago was a 850
I would think that closing the throttle plates would decrease the CFM but raise the velocity, kind of like putting a smaller carb on to get better low end response, but it will suffer on the big end. I had a nice 650 DP that my friend borrowed for his 10:1 427 chevy and it ran 11.60 with a 1.49 60. We ultimately switched to an 850 and it went 11.47 with a 1.51 60. The car weighed 3400 lbs. So basically you are correct, it takes alot of throttle plate movement to knock off a full second of ET no matter what the car weighs lol.
