[ame="https://www.youtube.com/watch?v=FXqumjchbRE"]Youtube Link - fuel pressure gauge[/ame]
Here is a video of WOT. About 20 seconds in I go WOT. You can kinda hear the miss after the RPMs climb. It does ok for the first few seconds, then about 4500 rpm it has the stumble sound. It sounds worse in the cockpit. The fuel pressure bounces quite a bit but seems to stabilize around 5. You can see fuel thru the sight windows the whole time. Thoughts?
I have the MSD Mallory 110 gph fuel pump -
External Link
Holley HP billet Fuel Pressure regulator - return style -
External link
I think I'll try disconnecting the secondary linkage. If that doesn't work go up on the jets. I'm afraid it may not be the carb, but something mechanical as has been discussed. I haven't been able to install the WBO2 sensor yet and it may be a week before I can due to heat and work. I hate that it gets to be 90 degrees by 9 am.