Holley Street Avenger 670cfm to big for 318cui?

Bewy said
I will disagree with the other opinions & suggest you swap the Holley for an Edel AVS2 carb.
My reasons?
- main reason is that although both carbs have similar cfm ratings, the Edel has smaller primaries [ secondaries are larger to give the total of 650 cfm]. Smaller primaries, all else being equal, give better response/feel. With the H carb, all four bores are the same size. Plus, the Edel has annular boosters in the primaries. The combination of the smaller pri bores AND the ann boosters will give better throttle response on the primaries, where most driving is done. Fuel economy should also be better.
- the engine is stock. So a carb that 'livens up' an otherwise stock, low power engine will make you feel like the expense of a new carb was worth it.........

I just replaced my Street Avenger 670 with an AVS2 650. Yes, the low speed throttle response is a little better, but not significant. Fuel economy should be better because unlike the Holley, the AVS2 only opens the secondaries at near WOT. Either one should be fine. The AVS2 comes with a 3/8" fuel inlet nipple, so I had to take the nipple off of my original AVS and put it onto the new carb because my stock fuel line is 5/16". Basic tuning of the new carb was simple. Bought the jet kit but don't need it for my basically stock engine.