[mreid]

If I understand you correctly, then yes any pressure is acceptable as long as it doesn't cause the needle to be pushed off the seat when the fuel bowl is full AND is sufficient to keep the bowl at the proper level at the highest engine output. Manufacturer stated fuel pressure requirements are specific to keep both of these in mind.

To Jerry's point above, I haven't followed your earlier posts, but Webers are outstanding carbs when the engine components are properly selected and the carbs are tuned properly. They are probably the most demanding of carbs for proper cam selection (duration and overlap), vacuum needs, and fuel pressure. They are the wrong carb for someone with no experience, unless they are tuned/maintained by an experienced Weber carb tuner. Fortunately, once proper engine component selection is complete and they are tuned properly, they run without the need for further tuning unless something breaks. They can be awesome!