Just thought I would get some opinions about which carb I should use. Currently have a 2100 2V and will be swapping for a 4 barrel and intake. I don't have the intake yet, so I could use some suggestion as to which one I should get as well as which carb. I have a holley list 8005 which I think is a 600 CFM Vac.Secondary that I could use but, I heard from other people that a 650 double pumper would be a better choice for performance. This is going on a 66 mustang with stock rearend, c4 and pretty much stock engine. I'll be porting the heads and installing headers in the future and hopefully a new cam. This car is mostly street driven with occasional highway.