Review on Holley Street 🚗 Avenger 570 CFM 4150 by Russ Conrad

Bought for a 1973 Chevy Impala, had a few installation problems but that was due to user error, not a problem with the carburetor. If your car has a traditional air intake, you will need to upgrade to an open air intake system that has slots for the carburetor floats. Other than that, this thing performs like a champ and actually gives me better performance than the old 760 CFM I had previously. I highly recommend it.