>
> >I have just installed a Holley Street Avenger 670 carb. I tried to
> >adjust the float level in both bowls but got a little overzealous with
> >the rear bowl and screwed the nut in so far that it didn't contact the
> >needle and seat assembly. I remove the nut and lockscrew and rotated the
> >needle and seat up far enough where the adjusting nut could contact it. > >
> >The problem is the adjustment doesn't seem to work. I have the front
> >bowl adjusted fine, but the rear bowl completely covers the sight glass
> >with fuel. I slowly turn the nut clockwise and the level will not lower.
> >With the assembly being turned in as far as I did, is there a possibility
> >that the float height adjuster (however it may accomplish this) became
> >disconnected? If so, I assume that I have to remove the bowl to fix it,
> >and what exactly do I do?
>
> I'm assuming that is on the secondaries??
> If so, Have you driven it and opened it up so that it would use some fuel?
What Bill is saying here is that it is damn near impossible to adjust a Holley float from too high, down. Fuel isn't consumed anywhere near fast enough to see a meaningful change in level.
Start with the float low and slowly work your way up to the correct level.