If I understand you correctly, you are saying your car ran faster with a 850. Not surprising at all, and goes hand in hand with the video in the fact of letting the car decide.
Exactly, forget all the cfm formulas for anything racey...yes faster with 850 than 750 and everyone in the class I ran in said my carb was too big. Even a guy that ran a Rover 3500cc V8 put my 850 on and ran 2/10tnths faster, he couldn't believe it, were talking 215ci but it was astick car and he revved it to the moon.
