The Edelbrock #1901 AV2 Series 500 cfm Carburetor is designed and
calibrated for small cubic-inch single carb applications, match with an
Edelbrock Performer or Performer EPS manifold or other brands of similar
design. Includes both timed and full vacuum ports for ignition advance.
#1901 is ..
The Edelbrock AVS2 Off-Road Carburetor #1915 with Manual Choke is a
special 650 CFM version of the proven #1905 street carb with Annular
Flow Booster technology for near-EFI-like drivability that you can feel
as soon as you step on the gas. Like AVS2 street carbs, the AVS2
Off-Road features ..