Quote: It was a Holley 950 that didn't have screw in air bleeds...
The initial release of the 80496 950 didn't have screw-in bleeds, but was still listed as an "HP" carb. They added that feature (along w/ some other things) in their -1 upgrade a few years later. I could still find both versions available when I bought my 80496-1 in the late '90s.
