Street Demon or Edelbrock AVS2 or ?

Sure, right. Invalid opinion. So what changed in the last 10 years? I still will not touch one. Keep tuning, rebuilding, and driving your Holley on the street. My friends have learned, and they both race. Neither has a Holley on their street cars anymore. As a matter of fact, one called me up to say how great the AVS 2 worked on his street rod after he got tired of dorking with the Holley. The other pulled all his stupid Holleys when his brothers beautiful 55 Chevy almost burned to the ground. Keep believing the "race" marketing and buying all your tuning parts.

I want to try one of those new Edelbrock 4150 carbs, looks like they took everything wrong with a traditional Holley and fixed it. Seems like a similar deal with the Summit carbs.

If I'm not mistaken Holley is actually stopping production or at least any further R&D of carburetors and putting all of their focus into EFI systems.